If you can take care of yourself in the outside world, well , that’s more than half the battle. Now you need to take a good look at your inside world. It’s natural that most woman want the “ protection and security “ a man can provide. In a psychological way. It appears like something happened around when you were 8 years old that has kept you mentally stuck. It has to be resolved or come to closure in some way otherwise you will never be able to have a fulfilling relationship that can last. Sounds like therapy would be a good place to start.
At least you seem to be able to define the problem and know where to start.
Get professional help. I know what it feels like to remain childish in a grown up world. Best of luck to you...