Gave it another try and ended in disappointment

So I found myself in this heartbreaking situation again. Yeah, I gave it another try. And how I feel so stupid finding myself in the same situation. A lot of guys want to be with someone whom they can share their life with..but are not ready to do the same. I'm getting tired of this whole thing. It's like a ghost that keeps hunting me, I am not sure if my 7 year relationship killed something in me or made me so cautious or too open..I don't wear my heart on my sleeve..but when I decided to give it a try -- slaps me straight on my face...but what can I do?
Maybe I'll take some time off from all these..maybe there's no one for me out there..and the idea of it all is just that the right person is just fiction...I'm at the point where I am giving up on this...