Man when I first started Trading I was like a man who found an oasis after 2 hot days in the dessert.... Most coins looked delicious, the market was in Ultra Bull mode, And yeah I made too many mistakes...
Firstly, I would advise anyone to stay away from pumps (or put a tiny(really tiny) amount of money in pumps just to see how they go.
You could however follow signals if you started to trust a certain signal giver, could be a "Crypto Twitter star" sort of speak or an admin on a Telegram signal channel (I know one of the best ones if anyone is interested message me as to not directly promote his channel here)
Then you have the other side of trading which is using your own knowledge and experience, some of that experience will have be earned by actually loosing money along the way ( consider this a tuition fee of the University of Trading)
Along with Patience, a very important emotion you must have is infact "Zero emotion"... What I'm trying to say is: The more emotional (afraid, worried, anxious, tense or even happy, glad, excited) the less you are in control of the trade, the trade is more in control of YOU! So, this may seem as a corny advise but I assure you this is one of the most important factors that make you gain or loose money! Think of Federer and how calm he is(generally) whether he wins or looses a point in Tennis, Be CRYPTOFEDERER!
PS: I have personally almost completely stopped trading but hodling for looong term!! and never far from crypto, doing bounties, airdrops and grabbing some extra coins here and there if I believe in a project enough.