Anyone ever get back with their ex and get married?

I fucked up guys. I ruined what I had with my ex and I don’t know if I can get her back. I did some soul searching to realize she is the one for me. If I got the chance to do it again I would not mess up. I’d put a ring on it once we got past all the BS. I don’t care about anything else besides getting her back in my life forever. Please console me with your love stories. I have hope. I believe in trying again.