I think you are probably right about about the reasons your mom doesn't acknowledge your role. Maybe that will help you deal with the feeling hurt part.
I sympathize w/ the weariness you're feeling and the need for a break. Doing what you're doing is tough. It was necessary for me to keep a constant watch on my mom.
I became her caregiver after she developed a slight dementia. At that time she had no trouble getting around. After a few incidents I learned to sleep with one eye and ear open. It's exhausting and stressful.
If you have a job or go to school that would be pretty much impossible for you.
What would you do if you had oh..like... a two week break?