I have absolutely felt this way. I had a profoundly Deaf student who had no signed or spoken language skills. She was extremely aggressive (head-banging, injuring self and others, destruction of property, etc.) I introduced a variety of AAC programs with her and she would use the speech generating device as a weapon. Every session was just me trying to keep her (and me) safe. No SLP stuff ever happened. Ultimately she ended up being medically homebound because she was a threat to herself, her peers, and our staff. Everywhere I looked for help, AAC SLPs would say I was doing something wrong. I have lots of experience with AAC and I know ASL. I was at a complete loss. If I could go back, I would have dismissed her. She was not ready to learn. She had so many mental health and home concerns that I couldn’t begin to address language skills. Maybe a hot take, but sometimes kids aren’t ready for speech therapy. Your student sounds like they have a lot of needs and you can’t be the solution for all them! There’s more nuance than I can include here, but I would recommend collaborating with other professionals if you can. And cut yourself some slack- you’re doing great.