Every decision in crypto will always require a risk at least. And how high the risks will depend on the decision itself. Fortunately, you put your money in BTC in which is likely the most valuable crypto at all.
I persoanlly a fan of Bitcoin, but telling the truth, not putting all into Bitcoin, still having some altcoins (mostly top coins)in order to take profit in short term.
If you are willing to still hold, I personally will take some profits in several stages or at least before thebullish time will sell mroe than 50% of the assets. And then take or buy again in the next bearish market to hold for long term period.

Wow all in BTC and haven't sold a bit since 2013 so i must assume that you are already gained or earned a profit from your 2013 investments if ever you were going to sold it today.

But to be honest, in my own opinion and perception I guess putting all eggs in one basket somehow wasn't that practical though the risks was always on the picture of investment but I guess considering of investing to other top altcoins was good too but of course it is your money and your rules.

great Decision mate but mind telling us How long will you plan keeping this holding?

- 0-1 Year

- 1-5 years

-5-10 years

This is important Idea for others as some of us are looking for this advise and wanting to be with the same Boat with others.

Actually putting all your eggs in one basket is not good, but considering your actions and reasons, I would say your wise. Bitcoin is the father of all cryptocurrencies if it falls  a bit altcoins falls deeply, so I think investing all you got on bitcoin is safer than splitting your funds! Reason being that bitcoin is a very strong potential coin and doesn't fluctuate like most altcoins, the only thing you will be missing out is the Roi percentage your supposed to be benefiting from altcoins, because if bitcoin rises by 10%, some altcoins will rise by 100%. So you benefit more while investing on altcoins.

Its a bit risky to put all your eggs in one basket because if something went wrong then you dont have any other investment to count on. However we are talking about bitcoin so I think its not really a bad idea, bitcoin is the top crypto and profitable to hold especially for long period. But its better if you consider to take profit, whats the point of holding if you wont take profit (even 30%) to enjoy your earnings?

Anyway I wonder how much bitcoin you currently have since you said you're holding since 2013.

I think OP is having a somewhat unintelligent strategy at the moment, because if you have a lot of evil up until now, you should also consider protecting the achievement and waiting. Next opportunity from this market. My goal is to sell off all the BTC I bought before when it reaches $70000, and wait for another opportunity to buy it back.

If you think you are comfortable with that strategy, the floor is always yours to decide on, and don't mind others.

Holding for a long time now, you should already know what you are doing including all the risks that you will face.

Trust your own decision. You won't do it if you aren't sure in the first place.

Well, i have not much but i'm hodling 50% in BTC, 30% in ETH and other in few altcoins. I'm not so brave to hold all my invests in BTC.

I'm hodling.

Just for your information, when it comes to crypto investments, you need to know that despite bitcoin being at the top it's not always the best choice to go for. Of late if we pick a few random coins,okay not so random say compare bnb,eth and bitcoin, you will find that bitcoin wasn't the best best among these coins but if you still want bitcoin atleast spread your risk to avoid losing everything at once.