Someone says what will be my advice for this success of holding for long, then I say keep believing in yourself and in Bitcoin, as it can change your life. With just $50, I'm enjoying the sweetness of having believed in it because I had a belief that it could never go back to $20k at all. Now we're here celebrating. How many years do you think I should hold it for? I'm thinking of holding till it reaches $200K. I deserve respect for believing!! We are 2 that have been holding and took the same trade together.
PS:Not my own screenshot is this!!

If this is actually your result from trading Bitcoin future then I must say that you are a wise and experienced trader. Having this kind of massive profit is attributed to patience because not all traders can be patient enough to holding without selling to this extend.
Trading the market is all about believing in what you are doing especially when you have been in the game for a very long time. If every trader can be as patient as this, to be patient while trading, many would be in profit and the frequent complaints we have been seeing from newbie traders would be minimal.
Trading is a lifestyle and we ought to understand the process and when we have to make certain decisions. If this is actually your trade result then you deserve an accolade!