As someone who lives in Southern California and has been doing theater for years, my personal choice was to do to a CC first and foremost. I auditioned for a conservatory after my HS senior year (AADA) and was accepted, however the area is not safe, by any means. Plus the fact that many conservatories do not have dorms means that living expenses are through the roof (studio apartments in LA cost a ridiculous amount). One great thing about LA is that despite the area being dangerous, you are near a good amount of studios and recording companies. When it comes down to it, it is all about weighing the pros and cons.
I chose to go to a CC because of financial reasons. I am so happy that I did, because the theatrical classes there have made me into a much better actor, and I am blessed to have had such wonderful teachers.
My ultimate suggestion is just to look more into your options. Like the above poster wrote, college will always be there waiting for you.