from personal experience, trade on the nows, not the what ifs. If a profit can be made, do it. Dont wonder about what could be - because the opposite is equally possible. Sure, hold on to some coins when you cash out in case the value goes up, but a profit is a profit - even if you sell early. Missing out on a higher payout by selling early isn't losing money. Its just a missed potential for earning more.

Risky investors do get rewarded more, but also punished more.