Being worthwhile to others does not fix your problems. I have felt that i was valuable to others, in that they would get me to do things for them and they liked that they didn't have to do those things. But when i quit doing those things I lost my value and was discarded. Doesn't feel great, to say the least.
The only value that matters is one's own value to oneself imho. Sadly i struggle with creating this for myself. Sometimes i manage to feel worthwhile for a bit, but the feeling is easily swept away by any negative event, mistake, ennui, or self-loathing.
Nothing is easy about living.