Are you holding yourself back?
It's easy to say, “Of course not! I'm giving it my all!” While it may be true, there may be something that you are voluntarily not trying. Whether it be not learning photography, or getting personal on your personal blog. If you're afraid of blog about something because you don't know enough about it? Or afraid to say something that needs to be said. You're holding yourself back.
It can be nerve wracking to take that step into unknown territory, but without venturing into the unknown, it's hard to discover something new.