I'm really stressed out at where I should be in my college career. In high school, I had taken trigonometry and analytical geometry. But when I went to college and took calculus, I was completely dumbfounded on what was being taught. I felt like I should have known the material. Google tells me analytical geometry and precalculus are not all that different. I think I should have been prepared for the course, yet I wasn't. That's why I'm taking a precalculus course right now. Is analytical geometry a sufficient substitute for precalculus?