Have any of you had to begin dating again post-divorce, past age 35?

What’s it like out there?? “Fishing” again after more than ten years of marriage scares me, especially as I am a ripe old (creaky) 37. I am not an attractive person any longer, I am leaving a husband who cheated constantly and the entire idea makes me want to crawl under my bed and stay there, but I don’t want to be alone, either. I need to get out and mix to find some friends, which I need, but I don’t know where to start. I am kind of a loner. If any of you have been here before, what was it like for you?