It gets worse. Wait until you start building them in the basement. ;-)

Trying to start with a P-51 is setting yourself up for failure. Though now-a-days there are "Pseudo 51" models that have nothing in common with a full-scale P-51 airframe except the lower oil cooler intake hump and the invasion bars. There is a good reason that trainers are usually "dirty" airframes with high , flat-bottommed wings and small control surfaces. Things happen slower and it gives you time to think and make a mistake or two.