I don't know if I am cursed or something. If I sell a coin now from airdrop/bounty few days later that coins increases much that you will regret selling. If I hold a coin from airdrop/bounty again that coins price decreases much that you will regret not selling right away. I'm confused now whenever I sell the price increases and when I hold the price decreases. Am I cursed? 
you are not condemned. you're just wrong in predicting the market. but the crypto market is always like that we cannot predict with certainty and most beginners also always experience things like this. I suggest that we stay calm is always grateful and not greedy. so that when we get a coin, wait a few weeks when the coin has gone up 50% from the initial selling price, we will get a profit. if after a few days it still rises we don't need to regret that the provision given by God is enough for us. if you think like that then your life will be happy.