One of the first things I made when designing my portfolio website project was create a fun profile picture. One thing I have learned is that designing for yourself is so much harder than designing anything for a client. Oi! I second guess myself more than anything and its more difficult to be decisive. I keep asking myself "Does this really represent my business and style?", "What is my style?", "Is this what I really want?"
I don't think I have done more research on any of my design projects than the time and energy it took just to get a general idea of what I wanted the look and feel of Pixel Dust Graphic Designs to be. And I always do a lot of research.
You would think that with all my experience I would be able to put together a great concept in no time, but It must be true we really can be our worst critics.