Military is service is obviously a way to get training in different career fields cheap, the Navy is a good choice for Aviation.If your profile is correct your still real young so don't get discouraged, if you would allow I would like to play Guidance counselor for a second and make a recomendation. You need to climb the ladder one step at a time, here's my recomendation.
1.) Join the Reserves, Air Force or Naval Reserve. Even check out the Army Reserve or California National Guard as they have all sorts of flying units flying both helicopters and fixed wing aircraft. They will give you the training you desire, plus money to continue with college, and some great experience to put on a resume.
2.) Stick with College while in the Reserves, my personal recomendation is to move towards a degree that will get you a teaching job when you Graduate. Teaching is in very high demand as there are not enough, especially in Math, Science and Special Ed. However Social Studies or even Physical Education is interesting.
3.) Once you start teaching you will be making decent money, I don't know what the salaries are like in California but for a recent College Graduate here in New Jersey you will start at between $40,000-$46,000. While teaching is not as exciting as full time active duty in the Military you get paid a heck of alot more, work a heck of alot less (Summers off) and have time and money to persue your true career goal. I know alot of people such as Dentists who started out teaching to help pay their way through Medical School, teaching gives you plenty of time to persue other studies such as flight trainning. It would also provide you with the resources to get out the house asap. Not that it helps but radio personality and Fox News star Bill Oreilly started out as a Social Studies teacher in a Middle School, now he makes like $30 Million a year. Even porn star Ron Jeremy started out teaching in a NYC Middle School, look at him now
So to summarize:
A.) Join the Reserves and persue aviation related MOS.
B.) Finish College while in the Reserves and get a degree in teaching.
C.) Graduate College and start teaching, you will be making atleast $40,000 for working only September-June plus benefits. You will have the financial resources to get your own place, and plenty of time off to continue your Reserve Drilling and enter flight training.