I have sold my BTC earlier @$31k-$35k range long ago. I have invested in altcoin then and made some great profits although I had to lose 50% at the end. Now, I own almost no cryptocurrency other than USDT and a few trash coins.
Yesterday, I was scrolling newsfeed on twitter and got someone tweeted like this, "No BTC holding is risky.' This is somewhat true when I thought it deeply. Now, I got the same feeling. It’s risky to not own any bitcoin. Fiat is getting devalued all the time.
I think you are selling bitcoins too fast, this is not very profitable for you, although the current and end of the year bitcoin prices will experience a very large increase, when compared to when you sold bitcoins.
The predictions you make are not accurate, so the bitcoins you have cannot be maximized properly at high values, there is no risky bitcoin holding for the next 4 years, because the development of bitcoin continues to skyrocket and is very much noticed by people or investors today.
That's why bitcoin will never die for the next 5 years at least.