Go to UCSD, explore film internships, production companies in the area, on campus opportunities, etc. Move to NYC when you graduate. It’s a lot more fun to live there when you are 21+ and employed.
I can’t stress enough how expensive NYC is — not just school, but everything. I moved from San Diego to NYC when I was 25 (in 2000) and I was shocked at how quickly money flew out of my wallet. I had a blast, truly. It was the best time of life to move to the city and I don’t regret it for a second. I stayed for 10 years and moved back to CA with a husband and 2 kids and a career.
Enjoy sunny San Diego, being a humanities major at UCSD and saving a ton of money.