Being able to learn about the mat is what’s important, not the math itself. If you can trudge through this term and don’t have to take any other calculus-based stuff (you might, at the outside, revisit a little bit of calculus in statistics, but I wouldn’t worry about it), you’ll probably be okay without it unless you’re going to work on image/signal processing or simulation software.
Mind you, some of the mind-bendingly good stuff falls in those fields.
Look at your remaining coursework. If any of that mentions a calculus prerequisite, you’re going to be feeling the same kind of pain that you’re feeling now from not having a strong understanding of trigonometry.
If you really want to work in software (not in IT), and especially if you want to stay around here (in the Bay Area), people are going to expect you to have come CS chops if you have a CS degree.
If you’re taking the classes mostly because you think the piece of paper will be helpful, don’t worry about it. However, I cut several corners in my education and by the time I finished, I really wished I’d actually taken the time to learn the theory better because it was interesting. Enjoy interesting problems whenever you can find them.