This is a great idea for a thread! I am looking forward to see the responses. JerseyGirl, I think being a perfectionist could be an advantage when it comes to exercise, if you are a perfectionist about exercising with proper form and following all your training recommendations!
I have just started to work out again after several years of flakiness. So I haven't had a lot of time for learning yet, but I will say:
The good: I am a perfectionist in that good kind of way, with wanting to do all the exercises meticulously perfectly. Also I am interested in learning more, more, more!
The not so good: I can fall into slumps of laziness and rebelliousness and feelings of futility. The rebellious part is something that I can tweak, I think, and turn it into an advantage. If I can be rebellious against the laziness!
Thanks for giving us something to think about!