I like FB for keeping up with extended family and friends. Close family and friends are local and HERE, so no real need to FB. I also keep up with volunteer pals/needs/news that way. But I don't volunteer that way except for one group who I manage the organization FB page for.
Get out and participate in life -- in real life. Join hobby something, learn something new class something, achieve something (
https://www.presidentschallenge.org/index.shtml for instance), volunteer at something.
www.volunteermatch.org for instance.
Get busy living and doing esteemable things. That's how you grow your own self esteem - by DOING esteemable things.
This comparing yourself to others business? Well, you see how it drains your own esteem. And who is doing the comparing anyway? YOU. So cut it out and visit the other side of the coin -- finding out what fills you up instead.
And you do THAT by doing and experimenting to find what really interests you.
GL!
A.