i have nothing going for me

im going to fail my course at college idk what to do anymore ive tried so hard i have nothing going for me i got scared and didnt go through with it last time i tried i dont want that to happen this time i think im going to go to the cliffs and just go into the water ill just close my eyes and go tosleep i think maybe thats a stupid plan ill probably take as many pills as i can too just to be safe i dont know i just want to stop feeling so much pain all the time