Lol. You've just described me. The good news is that tattoos might just cure you from that, once you find artist(s) whose work you are comfortable with. Or else you'll be spending the rest of your life second guessing yourself and/or in laser removal I guess :D.
I'm actually looking forward to my future tattoos since I'm now at a point where I'm starting to feel comfortable with just picking a loose subject matter/style and letting the artist run wild with that, rather than having to have the whole tattoo planned inside my head (or on paper) by the millimeter.