Im failing school.

Im 15, a grade 10 student in Canada and I'm almost failing, I don't know why.

Around septemeber at the start of the year in spetember my grades were in the 85-90's, its now October and my average grade is somewhere between the 60-80, and 80's only if I get lucky. Im not saying that I'm miserably failing, I am happy that I'm at least passing, but I grew up in an immigrant household, and for those who can relate, getting anything below a 90 is failing.

I study almost everyday for 7-8 hours, I have multiple tutors and I understand the material, Yet I don't know why I cant get above 80. I can memorize everything yet I can never seem to hit that 90 mark, I don't know whats wrong.

Even when I take practice tests as well I always get 90-100%, however on the actual test I get below an 80.

all my other friends are always complaining when they get below 90 and it makes me feel like shit, like I'm worthless compared to them. They always talk bad about students whose grades are below 90, yet when I tell them about my grades all they say is "oh..! that's okay, I mean that's pretty good!" I hate it so much, it's not good I know that, why can't they be upfront instead of repeating the same stuff? When I ask them for help, they just say that they never study or that they don't know, yet when it's time for the actual test they get above 95%.

It's not like I'm saying that they shouldn't be disappointed in there grades, or that they should be like me and also get lower grades, but I just hate when they say they cant help me or when they pity me like I'm some dumbass.

all my other friends are always complaining when they get below a 90 and it makes me feel like shit, like I'm worthless compared to them. They always talk bad about students whos grade are below 90, yet when I tell them about my grades all they say is "oh..! that's okay, I mean that's pretty good!" I hate it so much, its not good I know that, why cant they be upfront instead of repeating the same stuff. When I aks them for help, they just say that they never study or that they don't know, yet when its time for the actual test they get above 95%.

it doesn't help that the rest of my family is also acedmeicaly smart, all of my cousins were valedictorians and my parents had a 3.8 gpa.

I don't know what to do, or why I'm failing. I haven't told my parents, but there going to find out soon anyway in January when report cards come out.

what should I do?