Well, in general I think its a bad idea to OBSESS over anything. But being influenced by another person's style isn't a problem at all, its all just development and evolution as you move along and slowly figure out what you're all about and finally end up with a style that's all you. My own artistic development has, over the years, swung towards the directions of various other people's styles. And I'm sure I'm far from finished changing and evolving.
It's bad, stahp it... ._. Joke! I never got in that situation, to be honest, but I sometimes expect too much from myself (gee, as if I, myself, didn't know my numerous limitations... =_, I think that's a little like what I understood happens to you. Try relaxing and drawing BS, nobody expects anything from you, and you shouldn't, either.
Tell me if I didn't get your point (I'm afraid I didn't...).