Relax. You’re reaping the benefits right now. You’ve fixed it up and you have a nice living situation near L.A. at 24! Most people still have beer can furniture at your age. Buy her a ring. Get married. Have a kid. Your kids won’t know the difference between renting and owning until they are 10 years old. That gives you at least 10 years and 9 months before you have to impress anyone you care about by owning a house.
If you really want to see what life is like with a mortgage and property taxes, force yourse to put $2500 in a jar for 12 months. It might help you appreciate how nice you have it now.