(((((Shezbut))))
I am sorry you feel this way but I do understand, I have been struggling with the same thoughts lately.
As for your daughters, I know how you feel also, I raised two beautiful daughters who were very defiant (still are sometimes) but for them, please take care of yourself, they need you! Mine are adults now and since I am feeling so bad these days, they are there for me, they dont understand, but they are there for me.
You have two treasures, be good to yourself and to them.
Take good care of yourself.