How hard is it to get approved for Medicaid in Texas?

Mom is almost 88. Does not own anything, gets $1250 month SS. She lives with me full time. She is in late stages and it is so bad. I just retired and I honestly don't think I can do this all day, day in and day out. I have been doing it for 2 years and she is just getting worse by the day. Just went thru hospital stay of 3 days b/c of being severely constipated and blockage. She can't remember if she ate, can't dress herself, hard time to get up and down. hospital advocate says hard to get them approved. I am tired and just can't do it anymore. Had a part time caretaker but she retired. Also my husband is tired of having someone in our home all the time, which I get that too.