If you are thinking of Investing those funds that you are spending in Shopping in which not that important then why not just do what OP did?
Put the amount in Bitcoin (Or at least a coin of your choice) then find profit in the following years.

At least 6 months now , though i have  second thoughts of selling when the price rose up to 64k and i did sell half of my funds and re invest when the price drops down to 40k again.

I admire you for having the courage to discipline yourself by saving which benefits your health at the same time. Sometimes, we have to sacrifice something which includes our vices or our unnecessary routines to save and invest more in the future. Who would have thought that a small amount that we save each day could bring us a good profit in the future? It's just a matter of self-control.

It's not sacrificing if it's vices, that means that you are trying to rehabilitate yourself. I do admire OP too because as the quote above said which is the discipline is pretty awesome and a hard thing to maintain. You are right that it's just a matter of self-control and I think that if I have a honed one, I could've been a millionaire already.

a good way to discipline yourself and stay healthy from junk food
invest gradually, I think it's efficient if you collect it, it will go to 1 btc without being charged, calculate your savings,
keep on investing buddy

That's very good although it's so different with me. I am only a student at university so I don't have any salary at this time, my income is only from trading. I mean I sell something. I believe that this habbit will make you rich. If you think that it is okay to have bigger risk and profit then I will suggest you to buy new altcoins too especially altcoin which dumped by bounty hunter, usually this altcoin is undervalued. But you still need to evaluate the company behind it.

at this time I have learned a lot about the world of bitcoin and how it performs for the next 2 months, as we know now that we always remain optimistic in this matter and do not depend on any conditions for everything, if we want to leave in the month This is enough for us to sell it on the stock market, but if we still want to survive we are enough to be a little patient for a process

Yeah.. each of us has to attempt to look at our situation and the whole scheme of things.. in terms of your personal circumstances.. and how you are approaching your BTC investment.

I know that I have told so many variations of my same story over and over, so sometimes I am not sure if I should repeat some variant, but when I got into bitcoin in late 2013, I had already had more than 20 years investing in various tradional investment asset classes, and overall I had not done badly for myself – so when I came across bitcoin I already had various categories of diversification and even cash set aside .. and some variations of best practices, even though my various investment portfolios had never really had any kinds of levels of great performance.

So, I came into bitcoin looking for a kind of investment that was like gold and could hedge my various dollar based investments, but when I looked at actual gold, I did not like the fees, the difficulties with physical storage and the sense of seeming phoniness in holding paper versions, so bitcoin struck me as a great substitute for something like gold, but for about a year of DCAing into bitcoin and kind of attempting to front load my investing into BTC, I still really did not have comfortable in terms of what my target accumulation number was supposed to be until somewhere when I got to the end of 2014, and I had invested around 10% of my total investment portfolio into bitcoin.. so therefore, it kind of struck me, at that point, that my BTC investment had reached a high enough level, and I no longer needed to feel any kind of urgency in terms of whether I had enough stake or if I felt that I was sufficiently prepared for UP, in the event BTC prices were to go up from that point.

Even though by the end of 2014, I felt that I had enough BTC, through much of 2015 and 2016, I still continued to DCA buy into bitcoin and whenever I sold any BTC, I felt a kind of urgency in regards to buying back whatever I sold within that same week or so..   

I figured by the end of 2015, my BTC accumulation level had gotten to be around 13.5% of the value of all of my investment portfolio, so I started to feel that I was overinvested into BTC, because somewhere along the line I had concluded that my target level was supposed to be 10%, but I had gone beyond my target.

I understand that it might sound a bit strange, because even after I figured that I had overly invested in BTC (in terms of my own goals/targets), so I had developed some willingness to sell portions of my BTC as the price went up, but somewhere when BTC prices went from $600-ish in late 2016 to $2k-ish in early  2017, I started to conclude that I did not even want to sell BIG chunks of BTC and I was just going to sell small chunks up whatever price increases and just let the whole matter play out however, it would… so we know what happened in terms of the price going up to $20k andf then correcting back down to $3k and then getting stuck in $6k to $9k prices for a decently long stretch of time.

So, of course, my way of dealing with bitcoin as an investment might NOT be a very good role model for anyone who might be in their first 20 years of investing, because bitcoin was not around for my first 20 years of investing… so having a current option of bitcoin and figuring out how to deal with it can be quite challenging, even though there are a decent number of people in bitcoin in their early years of investing who have concluded that attempting to take an aggressive stake in bitcoin is an important approach to the matter… so one of my concerns is that I generally do not believe that selling BTC to accumulate BTC is not a good accumulation strategy until you reach a certain higher or overly higher level of accumulation.. yet I know that the way that BTC accumulators set their targets is going to vary… even if they recognize DCA buying to be a great longer term, BTC  accumulation strategy.

As I congratulate you, I also express my gratitude. This is a very good investment idea and habit. From your article, you can see that your mentality is very good and it is worth learning and learning from. In fact, many times we need to continue to summarize and review, clarify the plan, and stick to it. Hope to see your posts one after another, this will be a wonderful thing, come on, brother, I will follow you.