To start off, i'm not sure if this is the place to post this, so if i'm wrong, please forgive me. I graduated high school two years ago this may and am going to start college this fall. When i was in high school, i didn't try very hard in my math classes. I never planned on attending college so i didn't think i had any reason to study hard. But things change and i am set to attend this fall. I want to try to pursue a career in astronomy or astrophysics. What are some good ways to begin preparing mathmaticaly and scientificaly for a career in these fields? I would appreciate any advice you can post. Thanks in advance.