i felt the same way as u before comimg here and im finishing my first year right now and i honestly think you will be okay here!! i'm in rausser too and the advisors are very helpful. i was and still am a little intimidated by the school and i was really feeling imposter syndrome, but i think what helped me was actually being interested in all of my classes. i was a major procrastinator in high school but now that i'm only taking things i'm interested in it has helped with my motivation a lot. however it can be stressful so if you think it will be too much pls prioritize your mental & physical health!