Surprise surprise

School has me down again, I put off doing my chem until tonight where I sat down and went all out for the 3 hour time limit of stressfull hell, not even a 60. A 57.89%, so as predicted I ruined my night and now feel shitty. I hate this, why the hell do a care so much and worst why the hell am I so fucking stupid/bad at this? I know this material, so why can I never get these assignments right?

So now I feel sick, and on the verge of tears (This doesn't make sense, but I can't not feel it and it's stupid). More stress now to do better next time with added stress of only having 3 more tries to get it right.

i hate this, but I don't know what else to do