Dealing with variance

Sorry if this is the wrong forum, I was going to post it in Beginners, but I thought I'd get more of a response here.

How do you guys cope with it? Lately I feel like I don't remember how to play anymore. :/

What I started to do tonight was take notes on myself as I played. I took note if I made a mistake and made a list of leaks I was doing. Anyone else have tips?