If you want to be succeed in trading, i think the first thing you must have is "information" . The earlier you get information , the more you can earn from buying and selling coin, nothing special but not much people can have those "value informations". Or you can find some professional about coins to give you the predicts. Good Luck !
You call it information, I call it knowledge. Basically if someone desires to earn money from trading then he needs to have three things for sure which are but not limited to : Bankroll, knowledge and temperament.
I have seen even the best traders just get too anxious and sell their coins for cheap price, take an example for bitcoins when price recently went from 1200$ to 1000$ people panicked, this is exactly where you need some patience or temperament.