My parents r gonna be the death of me

So basically like I said in my last bulletin ( Is it normal ) my parents r not the best and so what happened was yesterday my mom checked my grades I have the 70s and 80s but mostly 80s and only like one or two '70s and like my grades are not perfect but I'm not failing and my mom was like that's not good enough for us and those grades won't be expected in this household you better get it together or else I will do it for you and I was like done at this point because they kept going on and on on how like I need to get better grades and I was like at least I try and care about my grades at least I'm passing why can't you bee happy I try and shes like no you don't try you could have 90s and 100s but you do apply yourself you're just lazy and don't wanna do the work and I'm like I am 13 and I'm taking 8-9th grade level courses and its a lot of stress and its hard and I can barely keep up and shes like well try harder don't be so lazy and then I start crying and shes like oh shut it your just being so dramatic and giving me attude after all I do for you you treat me like I'm trash like do you even care and now I am crying because ppl take her side and never belive me and I'm tired of it