Do you have any recommendations about cdramas that deal with stuff like depression, anxiety and panic attacks, ptsd, suicide attempts or stuff like that?

A Murderous Affair in Horizon Tower is really dark. It was well done, although it messed with my head more than I'm comfortable with. The things you mention are included but it's a murder mystery rather than a journey of healing.

+ Murderous affair in the Horizon Tower (really is superb)

Trinity of Shadows
Burning Ice
Victim's Game
Nobody Knows
Gold Panning

Movies:
Better days
The Post-Truth World

Honestly you could go for any of the Light on Series dramas. They all have one or more themes that you look for. 

LotusRayne thank you so much. Will definitely watch these.

Elisheva thank you. I'm up for murder mysteries any time 

Lou thank you so much. Gonna check them out

Go Ahead (deals with child abuse and neglect, and one of the MLs has trauma from that)

emeraldarrows I have watched Go Ahead. And it's one of the best ones I have seen so far, especially the first half. Tysm 

The physiologist 

Miss gu who is silent

Twilight 

The Victims' Game - taiwan