I’ve never had a girlfriend and I’m 27?

I just sabotaged the first girl I really felt I could be in a relationship with and where I felt it was mutual our liking for each other. I was too needy and clingy I feel. I also felt like I was a rebound so I was jealous towards the end when we she hung with other guys. We weren’t exclusive but I was still jealous. I’ve had sex with a lot of women and been in fake relationships where it’s really only about me fucking them. I’m just in it for the sex. This was the only time I felt I was on to something. How do I control my urges and not be needy and clingy. Because I also have a cold side to me where I won’t say what’s on my mind but my actions will tell you I’m mad.
I’ve never had a girlfriend and I’m 27?
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