"hello doctor.....I m 22yrs female. I m masturbating since the age of 12. But since last 2yrs I m not getting any pleasure. What can I do to solve thi?

Psych Consult. Sexual satisfaction usually involves a physical component and a psychological component. A woman in this situation should have a routine complete physical exam although most likely it is the psychological component that should be addressed. Therefore I would suggest a psychiatric consultation.
See a psych. Best to do is see a psychiatrist. Underlying psychiatric conditions can be associated with decreased sexual drive and pleasure.
Try real sex. Routine is boring even in sex, spice it up a little. Try some real sex instead of just self stimulation may be you will see some difference.