My mother passed away 2 years ago. She never left a will.

Hi,My mother passed away 2 years ago. She never left a will. There are 3 children. A discussion was held regarding inheritance tax on the house, and I was given a month to consider my options (I wasn’t able to pay the amount). It was never asked what my decision would be, and behind my back the house was placed into both my sisters names and not mine. Regardless of whether or not one is made a beneficiary, surely without my consent the home should never of been placed in their names without my permission? Also I’ve requested repeatedly to see all paperwork regarding my Mothers money that she left and it’s been denied. I have a legal right to see it? On top of all that I’m excluded from household decisions, and I’m put down constantly. It’s at an unbearable stage. How do I resolve this legally?