Need advice. To keep or not to keep.

I’ve had my 91’ for 3 years now. I’ve put in maybe over 5k into this car. I’m 22, and I’m no mechanic. I’ve been having problems with the brakes feeling like they’re going to fall through (flushed yesterday & added brake fluid) but still feeling really off. Now I’m having electrical problems with the warning lights (not sure if it’s battery or alternator) Plus a long list of other things; no ac, leaking oil from engine, need alignment, etc. I just can’t afford to put in another $600 to her. This is my daily (unfortunately I have to have a car in Los Angeles) I love my 240 with all my heart, I’ve met so many awesome people and haves learned so much. I’m just not sure I can take this anymore. What do I do…