Congratulations on racking up those profits on your Bitcoin investment. As someone who has seen a couple of bitcoin market cycles come and gone, it's safe to say that Bitcoin is one of the top performing assets of the last decade that has consistently rewarded hodlers and early adopters with more gains. Well, it's a bull run and everyone gets to benefit whether they have little to no knowledge about cryptocurrencies.

By the way, are you planning on investing back into bitcoin? The current price is about $17K from your sell zone but you can DCA for a bit.

OP doubled his FIAT.
yep im knitpicking wording
but selling his 0.1btc means he has no btc and didnt increase 0.1 to 0.2
he instead bought 0.1, kept 0.1. held and done nothing.. and just cashed out.

That's clean profit for you. That must be the mindset of everyone holder that whenever they sell, take it as a profit and disregard if it pumps or dumps after you sell.
Congratulations, so what is next for you? Are you going to buy again?

You lost ~35% of your BTC investment.
Yes, you buy at 10k and sold on 30k, you double your fiat investment but not BTC. You had 0.1BTC and sold it for 30k. Now is Bitcoin price 47k, so how much you can buy BTC for money which you "double"?
much less than 0.1 with which you started trading?

You sold too early. It is now 46k and probably going up. You may have a very hard time buying back in below your sell price.

If you sold to get fiat for something necessary in life, that's okay.

That's  how profitable  keeping  hodl of bitcoin can be, there are several  reasons  that would cause a pump.  Crypto  investment  cannot  easily be  predicted, sometimes  people can  just be lucky to buy at the  right price and time. This is the amazing part  of crypto,  you  can win big with a little patience.

I think the OP did well. He had an exit point that guaranteed considerable percentage profit. In retrospect it is easy to look back at price movements and say that you could have sold at a higher point, in practice it is harder, and it's next to impossible to sell at the absolute peak. When prices fall after a sustained rise, the fall is often dramatic. It is in general much better to sell in a market that is still rising, as the OP did.

And of course given the dollar price volatility of bitcoin, whilst he sold at 30k and the price is now nearer 50k, can any of us really say with confidence that the price will never drop back below 30k again? If/when this happens it would obviously give the OP a lower entry point and the option to increase his bitcoin holdings compared to his original sale point.

If it does happen, he can increase his quantity of bitcoin. If it doesn't happen, he's already doubled his money and is happy with the outcome.

You'll not be getting that huge gain/profit from your investment if you are one of those panic sellers.

You have the got to hold and patiently wait for the best time, ain't that perfect but still, you are gaining in the triple. Only a few people manage to do this since we are passing $20k coz it probably many holders are selling that time.

Well, I have to ask you if you still have the gut to buy Bitcoin now? Will you still risk your money since many speculations that we are able to reach $100k?

Great news and congratulations to you for that. But, i do have a lesson for everyone from this winning investment story.

Lesson 1: He was held his investment until it got to the price appreciation where he was ready to take profit. We can only make profit via bitcoin investment if we are patient to HOLD and also be attentive to TIMING.

Lesson 2: He avoided GREED. He took his profit when he discovered that the time was suitable to do that. He would have waited more had he became impatient.

Hence, having the patience to hold and the ability to suppress greed, given the right timing are critical to success in crypto space.

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Good advise. But, i believe what he should do in this case is to take his capital, and then reinvest the profit or part of the profit. who knows he might have needs that are pressing to meet with the return from the investment.

Also, still having some btc is a huge asset for the future. so, it will be great to reinvest back and wait for more appreciation.

[moderator's note: consecutive posts merged]