Umm, I rather thought individuals were responsible for their own happiness once they grow up. Therefore I wonder, without in any way, shape or form dismissing your own concerns or problems, if it entirely appropriate for you to blame your mother or yourself for each other's unhappiness?

I went through a similar phase, but I very carefully hid this from my mother, after all what can she do? She has her own problems and she had me when she was very young, hardly more than a child herself from my present perspective, so she did as well as she could given her inexperience and immaturity.

Nowadays I don't tell her my problems, but I do counsel her as best I can on her worries and concerns as she comes to the end of her life.