Where did the fun part go?

I joined the OPaW group in order to stimulate me creatively...to go out and shoot more.  Its my fourth week and I am already behind.  I had to ask myself why?  So I had to answer myself. (Duh) And the answer was I was over thinking it.  This is supposed to be fun and creative. I am supposed to be learning and having fun.  Instead I have been hyper-critical (not an abnormal occurrence) of everything I have shot since week two.  I won't stop being critical (just won't happen) but I will go back to the fun and creative part.  For the record this does not count as my third week post, (I am goal oriented naturally) so I will be catching up this week.