What are some bad habits and how to do you get over them?

I was wondering, what are some bad habits you have gotten into or noticed in others? What are some reasons for falling into these bad habits? And how do you break them?

One of my bad habits is that I have been reactivating my Q too early (or more so than usual) and missing my target. I almost never try to hit a target with the initial bolt and always fire it at an angle.

One more bad habit is that I never use my E as the beginning of a combo. I feel the need to slow the target first with a Q before I follow up with EW.