I want to ask everyone who got into bitcoin towards the end of 2017 and is currently at a loss, like myself

What will you do when the market goes up and you get your money back. Sell or just keep holding?
If this happen to me, i think to recover losses, i will do trade and double my bitcoin to recover on USD value. But before make trade decision, we should choose legit coin and have good trading skill because price fluctuation very high