I don't think it's a game of luck.
The cryptocurrency market and blockchain still have good prospects, so you need to wait for the winter to pass.
There is no luck in the business and it is just a matter of mind and your wise decisions according to the prevailing market condition. If you do not make the rational decision, you are history.
What good will it does you if you sell your coins knowing it is going to cost you some good part of your money you have invested? Despite you should hodl and stay passionate about the investment. The market never remains in one situation and it has natural hidden abilities to approach back to equilibrium.