I am unable to concentrate on my studies properly I did masturbation for last two years weekly twice or thrice one week continuously I did daily 2 times I am getting depressed nowadays I am unable to remember properly whatever I studied and unable to concentrate properly I stopped masturbation but I think it is having effect on me sometimes premature ejaculation during nighttimes and I am in my final year btech please help me out I need to study I am feeling guilty and sometimes I can't control without doing masturbation and I have a girlfriend I thought of having sex but she s. Worried if something happens please help me out.