By using success, I meant that I would like to be given more responsibilities, work on projects with bigger impact, to be more included in decisions. It usally comes with being promoted and having experience : things I find way more difficult while working part-time.

And by using average, I meant the fact of stagnating and not learning, etc...

I think I should not have used both of those terms. I does not really reflect what I mean (and I might sound full of myself).