learn as much mathematics as I can. Currently enrolled in undergrad summer classes at Berkeley, but I already have a CS degree from another school back east. Some obstacles: paying tuition out of pocket, navigating the bureaucracy of being a non-matriculated student, finding inexpensive housing near the university that's not utter crap; struggling to keep up in classes because I am older and my brain doesn't work as fast, etc.
if your goal is to just learn as much math as you can. Why matriculate in the class and pay tuition? I've never seen a professor check if everyone is matriculated let alone kick anyone out for not being matriculated. Plus no bureaucracy. :-) I've sat in on tons of classes. Also MIT, Stanford and Berkeley post video lectures, notes, assignments exams of math classes online. also free. save the money and get a better apartment.
Because at any given moment I may have some side projects that "might potentially make some money" going on, and if I don't pay for a class, I will naturally just want to work on those projects - this has been proven out by history.
