You'll be fine...If I can ask a question...is this your first painting experience? The reason I ask is I sense a case of nerves...If that's the case, don't worry, put the paint on the way you want it to look...be careful on curves and inside edges (that's where paint likes to hang out and run). Take the attitude that you are the master and you will make it shine. If you make a mistake, fix it later. I painted a fender about a week ago, Honda Civic (neighbor's car otherwise I wouldn't do it)...got a run in the clear on the body line. Fixed it later...and I've been painting for over 30 years, it only happens to the good painters...LOL.