I am not able to establish and maintain social n professional relations. not able to execute what i plans.

Need more information: to assess and help. You could be depressed, anxious, experiencing recent stress, losses or trauma etc. Your physical health may play a role. Suggest you see a mental health professional for an evaluation. Ask a trusted doctor for a referral. You want to find out why you're withdrawing from others and not able to follow through with school or job plans. Don't be embarrassed. I hope this helps you.

Therapy?: Have you yet tried any form of psychotherapy for him and for yourself? Typically, the optimal combination of things to treat emotional issues such as anxiety or depression is medication (which, on your best day, is supposed to take the edge off symptoms) but the real gruntwork takes place in psychotherapist's consulting room.