Hi Danish masturbation is a very normal physiological thing which at your age is bit from frequently done so first of all stop thinking that masturbation has caused your weakness and low bp. secondly the age group of your is highly lack healthy adequate and timely meals. i suggest you to improve your eating habits first, take a bit of more salt than usual drink plenty of water and avoid smoking if you do and let me know after a week of following my advise. ill be happy to hear from you. Good Luck