I'm tired of life

for context, im a 18 yo, who has recently moved to india, right now I am giving all sorts of entrance examinations, jee, gujcet, comedk you name it. Life where i lived before was so different, calm and easy to process, eversince the move, i cant seem to be thinking straight, I have no interests, my grades are falling, i was an A grader.It has been 6 months, a horrible experience with a guy i considered friend, and multiple ugly grades. It feels painful to let go of the potential, knowing well enough im the one destroying my own life, everything kind of feels off, im not sure how to well..go on after this. I feel gravitated towards harm at the same time I am aware that it would do me no good. im not sure what to do.

(Please forgive the absolute shitload of grammar mistakes) im rambling, im aware.

Can I figure stuff out? If so how?

Please be kind. I don't want to be DM-ed.