I agree with everyone that has posted so far. You're 15...you have your whole life ahead of you. Live it up!!! I've been working full time since I graduated hs at 17. I've been doing that and going to college full time. I'm going to be a secondary ed teacher. I'm pretty sure it's what I want to do. I love the satisfaction of helping someone learn something new. Makes me feel worthwhile and I love to help people. Then people ask me what I'm going to be teaching...and I tell them Geography. Then they laugh and ask why. Cuz it's what I love the most. I'm very interested in other parts of the world and sharing that knowledge to willing minds....and the ones that aren't willing to know about it making them interested in it. That's the most fun part is gettin other interested in it. Trust me....money doesn't buy you happiness. So don't let someone pressure you or influence you into something that you don't want to do just cuz you'll make more money. If you want to be a Honda mechanic then do it. Don't say that you are gonna suck at it. If you have good teachers and you are willing to learn, you'll be the best damn Honda mechanic there is. And then all of us can come to you to get our cars fixed!
Cheer up my friend...and listen to Chief (he's really smart ;-) )a positive attitude goes a LONG way. And it draws other people to you. No one wants to be around a "party pooper". So be happy...good luck with your test and I think you know that if you ever need to talk to anyone, we're all here to back ya up and give ya support. Hang in there...things will get better.