I think you're wrong for trying to approach the problem from your perspective rather than hers.

Maybe have a heart-to-heart talk with her on how she imagine her life is going to be in the future, what are her plans long term, etc.
Alot of the China youths going about laying flat are mostly depressed about their own future outlook, if I can summarize that from interviews.
They're stuck between the previous gen's expectations vs their own prospects of the future based on their own observation. Kinda like a midlife crisis before reaching midlife I guess.

I'm not saying be soft, but try to empathize. Maybe if she thinks some future goal is too high of an obstacle then set smaller personal goals first?

-Have a relative that recently quit because she's 'overwhelmed' due to kept bringing home work, my aunt could not understand it because
she worked a factory operator before so homework is an alien concept so she's not helping the situation either with her remarks.

During a depressive episode, a person experiences a depressed mood (feeling sad, irritable, or empty). They may feel a loss of pleasure or interest in activities.

A depressive episode differs from normal emotional fluctuations. Depressed mood occurs almost every day, for most of the day, and lasts for at least two weeks.

There are other symptoms, which may include:
Difficulty concentrating
Excessive guilt or low self-worth
Feelings of hopelessness about the future
Thoughts of death or suicide
Sleep disturbances
Changes in appetite or weight
Feeling very tired or lacking energy
Depression can create difficulties in various aspects of life, including community and family, work, and school.
Depressive episodes can be classified as mild, moderate, or severe, depending on the number and severity of symptoms and their impact on personal functioning.
I think my sister have internet addiction....