Yes, I have gone through the same situation several times so that I can understand concerns but you have to understand the fact that you can't do anything now, but there is always room for growth and correcting mistakes. Don't think too much about it and remember that better opportunities will come. Cryptocurrancy has just begun and will be better in the future.
In my personal opinion, when you regret, you dive into the past, and you close all the doors to the future best life. Stop doing it and concentrate on the new business.