I am 20 & masturbating since i was 15 regularly but now my erections are weak since past month.if i donot masturbate for 2-3 days i get erectios.help?

Erections and Brains: The brain is responsible for more than 50% of an erection. Worrying about it or being tired or stressed will lead to less erections and more worry. Masturbation, a normal and common part of the human experience, is not causing your erectile difficulties. I can promise you that. There is no medical reason to not masturbate. You may need to add porn or other stimulation to get confidence back.