I am 19 and am without any formal job experience. I want to get a job for the summer before I go off to college. Where do I even start?
Start with what interests you most. Look around where people are doing anything that is exciting to you. Do anything it takes to hang out there. Enthusiasm and a willingness to learn are your best job qualifications. If you are truly interested it will show and be very attractive to employers.
Begin your search with EVERYONE you know in your inner circle. Your family or friends might know of someone who is looking for summer time help. The more people you talk to the better. Move out of your inner circle to your connections at school or social networks and let them know what you are looking for. It never hurts to ask because the worst they can say is no. You'll never get a yes unless you ask.
Tempting though it might be to chase a paycheck, it's more important to just hang where things are happening and you can observe and help out. Trust me, this will pay off in dividends by giving you a head start in a career. Hopefully you are still getting room and board at home.
But now is the time to experiment as well. Don't be afraid of landing in the wrong field and realizing you dont like it once you get there. Chalk it up to experience and you'll have the freedom to explore other interests in the future.