I would work for yourself, make some fliers... let your freinds know you are starting the bussiness. I can't tell you how many freind's parents were willing to pay me ( as long as I actually fixed the problem). Yea its summer so too late to ask teachers, but i bet the cad teachers and any of those computer teachers do side work.
I got a 15 year old in my neiborhood who puts up fliers once a month, boasting about his 1 year experience in computer repair.... "I am 15 years old, and though I have no formal training; I make straight A's in school and take computer classes" --- personally I hate his flyer- but I'm sure he does get work ( Especially if he can afford to post new fliers every month or so)
I still do some side work and enjoy it much better than my tech support job. I can hand pick my clients, and refuse work if I choose. Plus, with a real job you won't have as much time for your jam sessions/practicing/gigs/studio etc......
-Good luck