My advice is to find a woman who is sweet, can talk with you about anything, and who has many many things in common with you -- for example, her family is like yours (same socio-economic level, religion, beliefs, even behavior!, whose mother and father you like), she is like you (will share sexual fantasies with you--all of them!-- fantasizes about you, loves your weewee, your face, etc. wants to see you masturbate, lets you see her, isn't shy in the bathroom either, etc. etc) Your main problem is finding someone suitable. It is not a sexual problem. Before leaving off and talking about sex, let me say you need someone who IS NEVER secretive, who doesn't lie or flirt with other men (is not a little bitch), who will share her every thought, fantasy, history, encounter, etc. barring nothing. You want her to give herself to you as you do to her. Everything. You must be interested in each other and to do that, you must know everything about one another.
Okay, about sex: my advice to you. Do not orgasm. Put your orgasms off day after day. Practice doing this. If you don't have a girl, masturbate but stop short of orgasm. Inure yourself to not having orgasms, just enjoy your girl's pleasure. Stay in her as long as possible, and if your girl loves you, she will be patient with you; she will not care if you are somewhat limp. Go in her and don't come but pump very slowly and feel your weewee in her, enjoy that as long as you can and as long as you want to.
One of my lovers does this and stands beside the bed and I'm on my side with my knees somewhat towards my chest with my fanny (I'm on one side of the bed on my side, remember) somewhat "hanging over" the side) and he enters me that way with plenty of lubricant (doesn't have to warm me up), and it's paradise for me. He never comes but once a week and I'm in heaven. I have four-eight orgasms every day, and because he doesn't come, he's ready and willing to do it again every few hours.