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. However, connections between erectile dysfunction & excess use of porn has been reported in many studies. For those affected, recovery takes place by 6-12 weeks & mainly involves avoiding the causative factor, that is watching porn. So, avoid watching porn & do not worry about getting impotent. Avoid stress...practice meditation..this helps in improving concentration & builds up the confidence level. Avoid smoking & alcohol. Despite these measures, if you experience difficulty, it will be better to rule out other causes like high blood pressure, blood sugar and other local causes that impair blood flow to the genital organ. 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. Best thing is to eat a healthy diet, exercise regularly, avoid stress, get good sleep, think positive and stay happy. Wishing you a Healthy Life. Take care.