There are a number of traits that are very important, if you want to do well.
The most important for me, is patience: Wait, and the cards will come. It will get you in the money much more often.
This really paid off for me a number of years ago, in the old
pokerstars Sunday Storm, format. I played only one hand in two hours, and won it. It got me into the money, and then the cards started to come. I made somewhere around $200.00 that day...all because I was patient, and watchful.