I got married second time at 50, met him at 49. He is great. It's never too late. But logically speaking longer you are staying with wrong men, less likely you'll meet right ones.

I generally don't feel like a victim or envy what others have, but I once when I was single I complained to my therapist how everyone else is married. She said "you have no idea what kind of lives they have, many people have such horrible marriages that You should rejoice that you are single". So don't worry about other people.