I think this entire self-esteem and self-worth idea is completely overrated. You feel depressed because you think lots of depressing thoughts all day, perhaps you also have a bad diet and don't exercise regularly, don't get much sunlight exposure or meet friends only seldomly.
That's it.
Self-worth is a myth, an illusion. It's only there if you believe in it. I find it sad to see so many people trying to "build self-worth". You don't need to. It's a waste of time. There is no such thing as "deep worth" and you don't need it. All this odd belief leads to is self-absorption, isolation and - guess what - depression. This strange idea that "something is wrong with me" should be completely discarded as the nonsense it really is. There's nothing "wrong" with anybody.
If you feel depressed, look at the list above, change some of your behavior and you will see that miraculously your depression will be gone. All that without any meddling with an illusionary self-worth-problem.
