Welcome! Post as long as you like.

You ask, what should I do? But if you are happy doing what you do, why shouldn't you keep doing it? You're not hurting anyone.

As far as I can see, the biggest pain you mention is childlessness.

You ask for advice, so I guess you have three options:

1. Have children of your own (and this includes adoption)
2. Spend time with other people's children.
3. Get a pet. (I am not joking, nor am I mocking you. A lot of people cope with childlessness this way.)

But first I think you need to explore your feelings. Do you really want children? Do you want a partner? How badly do you want these things, and are you prepared to pay the price?