I think ur jsut venting here and I have no right no give out advices…. Just that as someone who experience similar things, it must have been really stressful for you I could tell how hard you work, maybe the results is not what u wanted but I hope you recognize and appreacute your one hard work, maybe for school it’s not sth for u, but anyone who’s a hard worker…. You will do well in life and other stuff, I hope you will get what u wanted and get a better grades too

Hey, don't beat yourself up. School is a struggle for so many people. I barely graduated highschool, and I got kicked out of college twice for my grades. If you haven't already you should talk to your doctor about it, because it could be a mental health issue you aren't aware about. For me, it's ADHD. I'm still in the process of getting diagnosed but my doctor has basically told me thats the reason behind all of my issues.
There's also no shame in getting help from your peers, or outside tutoring if you want to keep it to yourself. Good luck ♥️