How to stop being scared of marriage?

I am 30 and i wanna get married because after 35 pregnancy comes with complications, not necessarily but is a risk. But its hard because none of the match i get i don't like. My sis found a guy who is good but am not even sexually attracted to him. I want to like them but it just doesn't happen and i feel scared whenever i find a potential match.

I feel like i will never find the one. I just want to like them as a man and that he is good and responsible no high standards at all, but didn't think attraction can be a problem. Also its about them being handsome because my ex wasn't n i did liked him a lot.
How to stop being scared of marriage?
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