Really Don't Like This Situation

My dear mother is always and will be an enabler for this over grown family member every year it is the same thing and once again she has allowed this family member into our small little place not enough room at all for all of us to be in here, and this family member has family with 3&4 bedroom houses but they want allow this family member back because lies& selfishness and a person this family member deals with and lies to protect and cover up for. I don't feel sorry for this person at all and it is no help to the anxiety &clostophobic problems I've a plus I like my own space and for the last week and a half they've took over what little space I've ,I've tried being nice and not getting angry but just real tired of my mother allowing this to happen again.
She only makes the situtation worse stating God is going to bless her, but yet we stay struggling and she continues to add to the struggle and just wonder how many more years of struggle before the blessings we both have done so much good for people but yet nothing to show for it. Just like these 14 years of anxiety, depression and health issues off and on and everyday it is the samething and I just get sick of it, no better yet Iam sick of it where are the blessings where is the better and no more struggling and no more anxiety, depression, health issues I've live enough of it and I fight to hold on to my faith it is smaller then a mustard seed Iam gripping tight too because even through it all. All the hell I've determination still to see my good here on earth, I will see my good my mom will see her good too she has done way to much good not too for people who if she needed them and called on them I know wouldn't do the same and that's a fact seen it happen many times before.