The market is always there, opportunities are always there, the important thing is whether we know how to grasp them or not or just sit and regret what has passed.
This is something that many people don't realize so they just complain and regret about the past. Like you, I think that as long as the market exists, the volatility of bitcoin is there, there will always be a way for us to make a profit. Making profits in the financial market is based on knowledge, experience, skills... and not just on the fact that you have the opportunity to buy early although buying early will have more benefits.
I also feel a bit regretful if the price continues to increase after I sell, but instead of wallowing in regret, I come up with a new plan to make more profits because I know opportunities will always be there and the work we are to grasp it.