I recommend these, they personally helped me with some stuff:
Memoir of a Snail - it's a movie I watched recently, it touches a lot of topics including self-hatred and mental health issues.
Soul - Also a movie, made by Pixar. It's about the meaning of life, and how we spend so much time in it chasing something that may not even make us happy, forgetting to stop for a while and appreciate the small things. It changed my perspective on life a lot. I recommend it so much. One of my fav movies.
Doom Patrol - it's a comic series, but I'm talking about the TV show adaptation. It's "what if superheroes had depression?" made into a show. The plot is about some people who after going through some accidents, got "superpowers" which actually ruined their lives/made them worse and a big part of the series is about them dealing with their powers and their traumas. It deals with mental health topics in a very interesting way. And something that I also love is how weird, absurd and ridiculous the show can get, while dealing with very serious/complex topics wonderfully. Like, if I tried describing to you the plot of an episode, you'd think I'm insane. And that's part of it's magic, yknow? Needless to say, it's one of my fav pieces of media and very special to me (hell, as you can see, my pfp is one of the main characters of that show lol). I recommend reading the comics, too.
Only Yesterday - It's a movie about a woman who travels to the countryside to visit some relatives, and there she starts remembering her childhood and what could've been. It's a lot about how our childhood can define a lot of things in our lives, and the beauty of the mundane aspects of life. All the movie is very calm and beautiful. It's a comfort movie for me.
The Sound of Magic: Annarasumanara - it's a manhwa (although it has a TV adaptation, I prefer the comic). It's about the dreams we have as kids, the reality of being an adult and society expectations. One of my fav comics.
It'll Be Okay - it's also a manhwa which just finished recently. It's an autobiography of a person who became paraplegic and her experience, how it affected her life, her family and so on. It deals with loss, uncertainty and mental health in a very personal way. It's a very interesting and heartbreaking read. Also, the author has a good sense of humor.