Anxiety on my upcoming exams

Like u see I go to this tutoring for specialized high schools and like I went there for 3 months so far but I havent improved that much and like most of the kids went for a year and they're doing so good and like I feel so uncomfortable and lonely there.I had a friend but she betrayed me for her other friend and I feel like people there judge me and like today I did kind of bad on my test and everyone else did so good and like I only have 35 days left before the actual test and thats not a lot of time and also Im really shy so its hard for me to ask for help espically since everyone else is ahead of me like I feel so depressed and my mom keeps pressuring and yelling at me like she doesnt even care about my depression even last year I was depressed and I had a hard time with my teachers so I got an 85.8 average but she got mad because my friends have a 95 average and like idk what to do like Ik Im going to fail the test and the tutoring is really expensive and I don't want to waste my parents money and like I just feel so dumb and I feel like itd be better if I just give up on life like no one really cares about me that much and my parents would get more money so they'll be happier