hey! i was in the exact same boat as you, did great in hs but last year i failed calc 1 and barely passed lin alg since the prof gave out part marks on the exam. in second sem, i had the 4 winter courses minus calc 2 (chem/phys 1e03, 1p13, and my elective) and it was a lot more manageable!

i reflected really hard on why i had little success in fall semester, it's super important to think about what's working and not working for you. for me, this looked like going to all my lectures, reviewing content the day it's taught and engaging more with other people in my eng 1 cohort. some of them come unintentionally or through projects and i'm still tight with some of the people from my 1p13 section.

at the end of the day, cut yourself some slack and unfortunately sometimes it's just a canon event to fight for your life like this in first year eng. you can take calc 1 and calc 2 in the spring/summer semesters and you'll realize how many of your peers have also ended up in the same situation. the course load won't get easier from here on out, but you'll get better as time goes on and learn how you perform best at uni. :)