I kept using the same strategy until I reached 5 btc profit (over a million bets...) and then two very bad losing streak in row nuked my excellent strategy.
tldr the longer you play on a profit, the higher the chances of losing everything.
Well, it's law of probability and actual science that makes you lose in the long run, which is 100% guaranteed because it's backed up by math, while you winning is backed up by pure luck, you should have cashed out the 5 btc they are worth a quarter of a million dollars now but yeah, regret will be there but it's alright, all things in life is predetermined by God