How do I break up with him when I’m scared to be single again?

I’ve been dating this guy for 5 months now. And he doesn’t add to my life we don’t fulfill each other like love is supposed to feel like. He’s lustful and I feel that any opportunity he’s have to be with another girl he’d take. I’m scared to be single again. I was single for a very long time before I met him. I struggle to find men I feel interested in and it took me 2 years to find him the first guy I’ve liked in a really long time. I’m scared I’ll never find the man for me :( I’m 22 and I’m ready to love and everything that comes. With it but loyalty isn’t a thing I want to deal with this early on. I’m just scared to be alone again I was enjoying being with someone. Like I’m actually scared and I also want him to miss me and regret his behaviour
How do I break up with him when I’m scared to be single again?
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