Can my mother keep me from seeing my deceased fathers will? He told me that he left monies for me upon his death ?

My father told me that he had left monies for me upon his death. He is now deceased. My mother will not let me see the will saying it is none of my business what my fathers will said. I feel she is withholding monies my father left to me. We all live in Texas and I am 62 years old. Can my mother legally keep me from seeing his will?