OP, just know that at every buying point there's also a selling point. Though you bought slightly at a late time you're enjoying the dividends in price rise now. You took that risk and it paid off.
That' s yet. Without risks how can you expect to make a profit. There is no such thing when it comes to crypto-usually.
In business (or trading, specifically) there is something called high risk and minimal risk. Expert traders tend to look at the reward to risk ratio before triggering trades. Those who bought Bitcoin at below $4k in 2020 took a certain risk and that's the minimal risk because the lowest Bitcoin could go flat would be $0 and that would be them losing less than $4k. But those who bought high like the OP did at over $21k was high risk because they could lose that $21k if Bitcoin goes flat. That's my drift, I guess you understand it now.