I'm sorry that you're in such a difficult place and been there for such a long time.
I'm a guy so I have to fix things. I'm sure that anything I could suggest to you are things you've heard a hundred times. I would think the best place to find someone is in church. That's where I met my second wife.
I rarely dated in high school. I met my first wife through a penpal club when I was 23 and she was 20. We met. We dated. We got married. We were married for almost 10 years. She died from kidney disease when I was 33 and she was 30.
Hang in there. Who know what will happen? I'd expect that you'll find someone who already has children that need a mother. You have a lot to give. I expect that you'll love someone with a first love passion when you do find him.
What advice do you get from friends and family? Do you hear certain things about yourself consistently? Maybe things to start doing or stop doing? I know some women work with just other women. They don't get a chance to meet men.
Dating services have their good points and bad points. The hardest is when you have too many choices. It makes it harder to find someone.
I understand about grief. I still grieve the death of my first wife. She died in 1992. She was a wonderful person. She was my first love. We adored each other. I sometimes dream she's alive and I'm absolutely thrilled. I remarried in 1994. I helped raise my step-son from aged 4 to adulthood. I was his real father. His biological father was seldom there for him. My second wife and I are reasonably happy. I just think that I'll never be fully done grieving in this life.