Why are some people so pressed

We are all human and we all make mistakes nobody is perfect. I also don't understand why she can't get drunk just because she has a child. I understand she needs a limit but this is the first time I have ever seen her pull something like this,

Christina is super talented I just think that she has been stressed and depressed these last few months with bionic and the media is playing a big roll in that They say nothing but negative things about her, I hope she pulls through this stressful time I know she can be bitchy but dame so what that just a part of her personality.

Flop or not she still out sings your fav so yall can stay mad.