1. You want independence from a woman...while having sex with that woman? Ummm, what? That doesn't follow. Sex is a partnership so if you want to be independent from her then don't have sex her.
2. What does 'independence from ourselves' mean? How do you ever escape being around yourself? Drugs? What are you talking about? Shouldn't you always be able to trust and rely on yourself? Isn't relying on yourself the very essence of independence? Is there more than one of you in your body, like conjoined souls or something?
Yeah, male contraception is all well and good, abstinence, vasectomy, condoms, whatever floats your boat. I don't see how any of that makes you independent from yourself, a sex-partner or anyone else, though.