Fustration

I hate starting out Frustrated pero its just what i am right now
my 40 yr old mother is having a child <--- not why I'm mad
I'm mad at the fact she barley raised 4 kids,honestly we all kinda have this hate towards her... soOo I'm trying to figure out is how r you going to raise a child to like you?
i know i know shes my mom...but shes always been the type to choose a man over her child...
and if that's the case will this child be forgotten???
what if her current fiance walks out on her
who will she have to lean on?
me?