Hi dear, I can empathize with you..but see life is a journey with failures and success ...so life is about to fall down 7 times and stand up again 8 times.. getting me...You need to analyze by discussing with people in the field about improvement in your preparations..stick with the thought with working hard..don't focus on results otherwise efficiency will be less..ok... regarding parents.they will always be there by your side..and if you become someone be their side in the same way..this thought will give you strength to move on I hope... Consult a Psychiatrist if it doesn't work..you can direct Consult also...