Hello dear.. First of all remove all myths & misconceptions from your mind about masturbation. In fact, Masturbation is completely normal & doesn t have any bad effect to the body and mind. All the rumors that masturbation leads to mental tension and hair loss is baseless. So...don t worry about all this & stay relaxed. Avoid stress...practice meditation..this helps in improving concentration & builds up the confidence level. Have a diet rich in fruits, vegetables, fish, nuts & honey. Avoid smoking & alcohol. One more thing...avoid consuming any over the counter medication which claim to increase the size of penis or improve performance...it may be harmful. Wishing you a Healthy Life. Take care.