I can't provide a blanketing explanation for everyone, or one that is right for you. (That's good, I should probably start out all my responses in the forums here with that statement!) But this is what resonates for me, and it might, and I hope that it may make sense for you as well, which is why I share my thoughts here today.

For me self worth comes from doing. It really is that simple. Finding something that you get interested in, and you get into, and find a way to becomes involved in doing something that which brings you passion eventually leads to you doing that thing a lot. You eventually become very good and very wise in that subject of that passion and your ability to do whatever it is. you sense of fulfilment is high, your esteem is will eventually be as well, as you meet others who do what it is you like to do as well. It can be anything you want, so long as it never feels like work, and it always brings you pride and gratification once you're done.