Hey mate. I certainly didn't want to talk down to or dismiss your struggles.

Mental health is a very difficult subject and Stoicism sure isn't some magical solution, but I found it to be really helpful to iron out the rough patches in life and I can agree with you that these modern oneliner quotes just don't work. It's like reading just do happy thoughts and be done with it. It ain't that easy.

Though I do agree with the general meaning of this quote just reading it won't help. Behind Stoicism is a lot of reading and daily mental practice before you can advance towards this outcome and even then 99.9% will never reach this goal. Though we do get better at it. And for me that's enough.

But this said, with some mental issues you need medication and/or therapy.

Greetings and wish you the best.