Rant about not doing good enough

I was trying my best on being better. 

In the beginning of the year, I promised I would only get good grades, try to enter in a good school and have a good job to have a good life, that's what my mom told me. But how can I actually study and learn when school is so fucking draining and makes me give up every single time I promise that. 

My mom often tells me things to try helping, but actually gets me worse, like comparing me to someone else who I don't even know. 

I hate to think about the future with the place Im in now, I'm so so worried where I'm going to be when I turn into an full adult. 

I don't know if I'm just being whiny about this or something, but I just want the year to end.