Actually people's learn from mistake. Those mistake I did began, I am realizing now. That's why I want to share it. Perhaps everyone will not agree with me. Every traders have few favorite coins. It's normal fact, but don't love too much any coin it's my logic.
I don't want to mention but I have lost many btc just one coin. Just think it will go more up and didn't sold. In a result price dropped 4X. So I want to say don't love any coin, just sale when you are in profit and go another coin or wait for drop price again and buy it. It's very difficult to recover once drop an Altcoin. One more thing, don't invest your all fund on single coin. It will loss more, who know it will up or drop.
this can be a learning that putting all your money into one coin is very risky, but trying to share the money we have to infest many coins, this may be safer, because it is impossible for all coins to fall simultaneously, or maybe we infest gradually , because gradually we can always follow the current price, make all the events in the trade a lesson for us.