Write your profile honestly. State what you want. State what you're bringing to the party. Then edit, ask, talk, phone, and get to know them before you go for that intoxicating "first date." And, in my opinion, avoid meeting for alcoholic drinks.
If you want joyful sex, you explore and ask for a joyful partner. And when the chemistry is ON you can imagine seeking ever deeper levels of connection with this partner.
Having an orgasm for me, during sex, is a function of tuning into my partner's directions and hints and basking in the experience of feeling every inch of their body.
But, with each of my last three relationships, I learned some fundamental truths about myself in a relationship. I am not surprised that dating has little or no allure. I had such a wonderful partner. I learned what if felt like to be loved with abandon and openness. And I learned how far I could go before I broke down over the disconnections that continued to happen.
Sex is all in the mind. If your mind is elsewhere, I'd rather let you go do whatever it is that is distracting you from being enthusiastically present with me. The several times I wondered about my own sexual potency, I realized it was much more about my heart and my intention in making love in the first place.