sir I’m a student .I had habit from my childhood. Sir, I had sexual habit in my childhood that I started while I’m studying second std. the reason is that it disturb me while I’m studying.. so I think about my husband in dream and I have sex with also in dream after that I will start my study.

I guess that you have problem of compulsive masturbation. It is one of the Obsessive spectrum disorders. It is mental illness related to Serotonin (chemical in brain) imbalance and other psychological factors. Please consult psychiatrist, you will get rid of your problem.