I feel like I'm trying really hard to do well in school but I'm borderline failing multiple classes.
Are you telling me this because you think you might want to cheat on the exams?
Indeed, I think I have only one way to succeed
Wanting to do good on your exams and in school is respectable but you shouldn't cheat to do it. You probably could just use a little tutoring and it'll help you get your grades up. You can even come to me if you need help.
My mom will get mad if I fail so I have to cheat.
We can't always live up to others expectations. Trust me when I tell you, cheating isn't succeeding, either. Just be honest with your mom and let her know you're struggling.