I'm not a PhD student or anything, and don't intend to go to school for astronomy or physics. I'm an author who's always enjoyed space, and I want to use amateur astronomy as a way to contribute to the field. Send my findings to a team and the like. It's a fun hobby and I'd like to be helpful, even if I have no intentions of being a professional in this field.
However, despite my interest in space, I have zero research experience in astronomy. I made an A in conceptual physics in college, and my highest math is precalculus. I tried trigonometry and calculus, and I was defeated. I'm not adverse to using trig and precalculus, though, and I have an entire internet to make sure I get the math right. I'm going for correct results with a casual timeframe, not a C average with tests on the horizon.
Aside from reading white papers on Arxiv and textbooks I buy secondhand on ebay, or contacting professionals directly for information on what's currently being studied, I'm not really sure where to begin. I don't have a (working) telescope, and there looks to be a lot of different subjects I can study. Where do I begin with the basics? What are ways I can quickly and actively apply what I read? Thanks for any information you can provide in advance.