hi...thanks for writing.. i have understood your concerns.. masturbation is normal activity. that most of the boys practice..it is not a bad habit and it does not cause any physical and sexual weakness..it is a way to satisfy your sexual needs in the absence of a partner.. there are no side effects of masturbation on active sexual marriage life..whatever u are doing now with your hand to gain sexual pleasure, the same will be there for you in sexual intercourse..yeah, you may need time to become used to actual sex and u may initially face problems of early ejaculation and sometimes erectile dysfunction, but these are common and resolve on its own.. you shud not worry about the future sexual encounter at present, otherwise it will increase the anxiety and your sexual performance in the future will decrease...so u need not do anything now... what do you mean by help for increasing the sexual power? you need not do anything specific for these..after marriage, u shud also concentrate on foreplay before sex for better erection and sexual pleasure.. i hope u ll find this advice helpful...best luck..