How come these showbiz people overcome depression?

Since i came to know about this cute 20 years old girl named as tunisha sharama killed herself battling depressions and loneliness since 2018 as she was a single kid ..., i thought all these people may be struggling in life with something they do not show on screen, i wish people talk to each other regarding it , i am still saddened by tunisha case which i came to know recently

Tunisha Sharma such a cute girl killed herself battling depression

https://www.youtube.com/watch?v=pug56HGCabs