I learned the hard way that Hodling BTC is the only way. I wanted to grow my BTC so i sold my 1BTC @32K a month ago and put that money in DeFi for yield farming in those high APY. I took some losses and some gains. Now BTC jumped 47K. If i would have just HODL all this way i would have more USDT then if i buy BTC now. Lesson i Learned: Yield farming is useless. People put so much at risk entering smart contract not to mention the daily time waste. Just HODL and you would have more more money than anyone yield farming in long run.
Don't regret instead invest again if you still have capital. That is what always said that if you invest, don't put all your eggs in one basket. Defi is not a bad at all but bitcoin is really valuable and with higher number of demands ever since. So, don't be afraid to hold and wait the right time for you o sell your bitcoin then buy again if there is any price correction. Forget the past, just move on and continue to invest in bitcoin.