Can i have some advice please

All through year 11 ive been revising super hard like 1:30 hours per day and i feel like pressure has been put on me by my family,myself, my class mates and my teacher to get a B, and i sat a mock test 3 months ago and i got a B, so i got all excited knowing ill get a B, but today i think ive just miserably failed and it makes me depressed and sick to my stomach just thinking i might of failed and let them all down. I feel like im going to have a mental break down. ask for your advice to help me

There is no such thing as failure Cameron my friend... You are only the best you can be and you outer influence have no doubt recognised this so this eliminates all pressures. You say you've been revising super hard for 1:30 hours per day so there is no regret and believe me hard work pays off and always think positively after any exam - don't let thoughts of confidence or grief overwhelm you! Keep Calm and Carry On and you'll do amazing, like you deserved