To me it sounds like you are lonely and lacking in self confidence etc... and one of the best things you could do is learn to make you happy, learn to enjoy your life as it is and as a dad, irrelevant of any woman.
I came out of my last relationship with a lot of issues but got myself involved in a social group and have such a brilliant social life, have made some wonderful friends and my self confidence has increased a lot.
I'm by no means all there (I was posting on here myself the other day) but it has made a big difference and I have such a full life I don't have space to feel lonely although, I have to say, albeit I am perfectly happy in my own company which I feel is also very important.
It might also, in time, be a good way of meeting girls you have something in common with and who you can get to know over time.
Maybe you need to try a different angle, rather than looking for a woman to make you happy, make yourself happy and chances are a lovely lady will find you.
I would though, as a word of caution, advise against joining a social group if you would be tempted to put yourself about on it. We currently have a problem with someone newish on the group I'm with and it hasn't gone down well at all.
We have some couples on the group and we're not exactly a prudish lot and people getting together isn't a problem but putting yourself about is just not a great way to ingratiate yourself.