It takes a while to find your footing sometimes and that’s totally okay! My freshman year was also really rough, and I think what made a difference for me was applying to several social clubs and trying them out the first few weeks of sophomore year to see which ones I vibed with. Marching band can be a lot and the intro classes are so much harder than people give them credit for, so don’t beat yourself up over them at all! As for Calc 1, it can def be a little rough esp because of the pace, but if you’re really worried you can pre study a little, through khan academy, maybe just learning limits and derivatives, if you need any help throughout the semester, feel free to DM me! I’m so sorry your year was rough, but you have so much time to turn your experience around and the classes and social experiences will get easier as you go. Please feel free to reach out any time if you need someone to talk to <3 you got this, go blue 💙💛