Oh, so have I... so have I. If there's anything I hate, it's having too long to think about how to do a seemingly difficult task. Too much stress and worrying over the solution, when in most cases, were I actually on site dealing with the scenario, I'd have the problem solved and the solution implemented and never have to experience the stress.
I've posted in here before, asking for advice on upcoming projects that I deemed to be difficult, only yo get to the actual job to have it go much more smoothly and simpler than anticipated.
Anytime I get a project with unknown solutions and anticipated problems, I really just want to jump into it ASAP to avoid all the anxiety that usually proves to be unwarranted.