Sanctus:
Don't let them get you down. Good for you wanting to do things to your car. That is the only way you will learn.
Whatever you do, you will have some people telling you that you did it wrong. Keep trying, and good luck.
16 and a Mustang...lucky you. I thought I was a big shot for getting one at 41...yes, my 15 year old son is eying up my Stang.