Labels and defining your worth

I like to use the terms 'writer' and 'artist' to define me, but I feel distant from them now. I used to feel supported in my creative endevours and this helped boost my sense of self and my worth: my friends did art and writing with me, we talked about our art and writing and shared characters and designed universes, my friends would read my stories, I did art and writing in school to the encouragement of teachers, I won art awards in school, I posted to DeviantArt and I was feeling confident and motivated. Since DeviantArt has gone downhill I have stopped posting there, my friends no longer read my stories, my friends no longer care about writing and art or our characters or universes, I am no longer in school, no one gives a *** about what I create or if I create anything at all. I write and draw for no one. I've lost interest in the things I used to be so passionate about because if no one gives a *** about them and no one gives a *** about me, then why bother? Without 'writer' and 'artist' I feel like I have no worth. I feel like a ghost I feel lost I feel abandoned and betrayed. I've tried going to meetups for local artists for months but I can't connect. I feel no passion or meaning in my work. This world feels cruel and miserable and meaningless and I don't know how to build myself back up again when the future for me just seems horribly bleak.