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 can't be cursed if you don't believe in such things

i think you just don't estimate yourself as somebody who can succeed. trust me, self esteem in such matters is crucial point