unless u are having long term diabetes mellitus or uncontrolled hypertension or any neurological issues or spinal injury in lower back, u are having normal sexual physiology and whatever problems u have are all related to psychological issues. i dont know about your sexual partner whether she is your wife or one night stand or girlfriend? if u r very much concerned about your sexual performance and satisfaction of your sexual companion then your anxiety will rise every time u go for a sex. particularly when u go for prostitute or someone who is nt your regular sexual partner, u may feel ashamed coz of your poor erection. in this case u must not worry about your erectile dysfunction otherwise u may not able to handle the problem. rather i will advise u to go for sex with your wife only, when u have recovered from your problem u can try with another sexual partner. bex\cause prostitutes are always in a hurry and the sex is performed in a unsafe secluded place where one has a fear of being caught. so there will be poor performance obviously. when u have resolved your psychological issues but still u r not performing well then u can go for medications like viagra.. viagra u can take half an hour befre performing sexual intercourse..