It's hurtful and hard when people you love refuse to take any responsibility in communicating with you.
The "hearing world" attitude can be pretty unforgiving, that all the responsibility is up to the HOH or Deaf person, to communicate, and they shouldn't have to lift their little finger even to help. Grrr!
Learning ASL is a huge undertaking, one I've just begun last fall with a free series of classes from our local deaf advocacy agency. This time classes were in the evening, so I took my fully hearing DH (dear husband). He has always been courteous with me as my hearing loss progresses, but he truly didn't understand the extent of effort I have to put out, depending on the environment. Even when I would tell him what I needed (face me, don't try to talk to me from another room, don't have TV/music too loud, be aware of background noise, etc.), until he went to those classes with me, and heard other stories of frustration from others in the class with hearing loss, some of what I'd shared about my frustration just hadn't fully clicked. Now he gets it better than he ever did before.
I also shared links to articles and blogs and it all helped him become more aware. Now he is my strongest advocate when we are out somewhere!
So, taking your mom to lip reading class (we are taking some now) will help her understand how hard speech reading really is! And maybe, like in our class last week, we shared our frustrations and difficulties dealing with the "hearing" people, and some simple respectful things can help. And my DH (husband) spoke up and shared situations, too, that we had endured together. :P It's important that your mom change her outlook to realize that communication is a *two-way* street, including both the fully hearing person and the HOH/Deaf person as well. Maybe being exposed to others, including your audiologist, and maybe going to class with you once or twice, would help. And finding ways to communicate easier *now* like texting when she can't get her thoughts across to you, etc. Work out ways to communicate better with the tools available (pad & paper, texting, etc.). Help her to be creative, rather than just expecting you to do all the effort. Just ideas I'm throwing out...
So, keep trying. The hearing world gets lied to all with myths the time, that hearing aids/implants, speech reading, etc., are instant cures and they don't have to do anything. Just expect the Deaf/HOH person to make all the effort. That aids, implants, speech reading are "Star Trek" and they don't have to do anything at all to help.
And unless we educate people one at a time, sometimes, they just really don't have a clue.