If you get stuck with any overwhelming class, use the “think-aloud” protocol (look it up) with yourself. Write out your feelings, write out what you’re confused about, write about your immediate and mid-range project goals. Good grammar is not important here. Just give an outlet to your mind.
Also look into Rubber-Duck Debugging.
Writing good questions
Learning to ask good questions is essential to finding answers, even if you’re only asking them to your rubber duck. See StackOverflow’s guide on “How do I ask a good question?”
What should I do when I start making money?
I am a disciple of Frugal Professor’s Hierarchy of Savings, 10/10 would recommend.