Help😩 so stressed

So guys please don’t judge me but I am a now freshmen in college and as a freshmen you’re supposed to take a math placement test to put you in a class you’re supposed to be in and for some stupid reason I decided to cheat on that so now I’m in the regular course that I’m so scared about when I know I should’ve placed in a lower math. Please don’t judge me on this I feel so bad as it is and honestly didn’t know what I was thinking. It’s passed the deadline to drop the class so now I’m stuck and I’ve been understanding the things we’ve learned so far because I’ve spent a lot of time studying but I’m so terrified of new stuff we’re gonna learn in the future. Mind you i took the ap class for this course in high school and passed the class but I struggled alottt with it and honestly probably only passed it because my teacher was so chill. I didn’t take the test so I’m basically retaking the class so I kinda know what we’re gonna be learning but I’m still so scared. Do you guys know how I can stop myself from stressing out so much ?? I feel like I’m overwhelming myself so much I literally wanna cry at points. Thank you so much!