I understand. I was in and out of school until ending up at a large Ivy league school that let me in. There, the drop period for classes was longer than at many other schools. I shopped heavily for teachers. After dropping calculus multiple times, I found the professor I could understand. I knew I was in the right class when he was doing a problem and stopped and mentioned that he was terrible at arithmetic. I then got As in calculus classes. Ditto physics. Etc. Since you are 30, try to approach a very good school's adult program. Even Harvard has an extension school. Explain what you are capable of and see if you can start for credit without necessarily (yet) being on degree track status. And shop for classes.
I am pretty sure I would have failed out of community college, but graduated summa cum laude from an ivy. We are kinda weird that way.
Sound advice. In one particular semester, I had mistakenly been registered in a "Fundamentals of Transmission Line Theory" course. It was a grad-level course for engineering majors. Prerequisites included lots of calculus, physics, and programming. It was the only class I passed that year. I even told the teacher I didn't have any prerequisites, not one, but I was willing to learn. Part of the end project was to build a uhf antenna that had certain gain requirements, with all of the charting and calculations for the antenna.
It was probably the most fascinating thing a college has ever given me to work at. There was good questions about EM propagation, triangulating signals, smith charts, and how wave forms behaved. Good solid math that is fun to do and answers a question. He took the time to describe waveforms, explained calculus problems, and reviewed my notes.
Introduction to Art History, on the other hand, was impossible to learn. Artists love to assign all of these arbitrary labels to random shapes that ALREADY have names. The label columns, pieces of doorways, different kinds of pencil marks, and tons of utterly useless information. Anyone can give arbitrary labels to random things. Memorizing them was impossible, because none of them had any factual basis or quantitative value.
I was told that random splashing of paint on a canvas was a fantastic work, and how some of those pieces sell for millions! And that the splashes of paint were important because they conveyed the artist's rage.
1. I don't know who that painter is. I don't care how he feels.
2. Splashes of multicolored paint do not convey feelings. There has never been any article in any journal that supports the idea that emotions are telepathically transmitted from paint splashes.
3. Despite my critique, I inwardly hate myself. If randomly splashing paint on a bedsheet sells for millions of dollars, why am I wasting all my mental energy on things like P vs. NP?