I don't know of accurate depictions, cause 9 out of 10, dramas tend to dramaticize scenarios of the watchability factor. But I do think you must check out the Kmovie Kim Jiyoung: Born 1982. Based on a book with the same title and can be watch at Netflix. A story about a mother who suffer from depression with the backdrop and social construct (Judgement, expectation and discrimination) of women in current korean society.
Also here are some additional recommendation that deals with Mental Health and probably does depics its scenes closer to actual thing / realisty:
- Lost - Must watch about depression
- The World Between us - social commentary of the aftermath of tragedy
- My Mister
- Mars
- Arifureta Kiseki
Here are some that delve a bit into the actual job of Psychology or the healing processs with an actual medical staff, but do feel more dramaticized:
- YOu are my Spring - FL has the trauma and ML is a psychologist/psychiatrist
- Its Okay that's love - ML is Schizo with FL is the Psychologist
- Mad with each other - both leads are seeking mental healing from a professional
- Soul Mechanic - ML is the psychiatrist and the FL is an actress who has mental health issues
- Here to heart - FL is ML is a psychologist
- Kill Me heal Me - ML has DID and FL is the Psychologist
- Mental Coach Jegal - ML is as the title states a mental coach to a very traumatized and pressured athlete
- from Survivor to Healer
PS: "It's okay not to be okay" is good but I doubt this is the one you might consider as actual depiction.