Last 2 days I bought for about some cheap coins and it went down for about 5% or something and I decided to sell. And now, I am at full regret that all of those coins are now up for about 20%. My lesson for that is to be patient since the market was down for some day and it will always go back up.
that is what traders call panic sell. it's a bad attitude being traders. Patience is number one rules in trading, if not, regret is number one result, probably. you should learn fluctuation and portofolio of coins' price, then you'll find that risk is a normal thing in trading that you have to accept.