Just usual hold and sell when it's high trick
And i think it's safer than invest in bitcoin casino where a gambler might win a jackpot, they got hacked or they run away with investor's and user's money.
The problem is knowing when it's high. You might want to sell at 1000 USD when we reach it on the next pump, but maybe it goes to 4000, and you sell at 1000, which means you have lost the opportunity to make tons of times.
Granted, you made some money, but the feeling of bitterness at not having held for longer is painful, I have experienced it before. This is why im a very long term holder only.