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 need a technical analysis skills dude. Trading is 50/50. 50 skills, 50 luck. Don't worry you're not cursed. Each and everyone here shares the same experience as yours. Learn from articles, videos and websites that tackles trading. And also try to join community chat for traders. There's a lot of groups in Telegram. You're not cursed. You just need to dig more about trading. Good luck.