Hi
So sorry you are going through this.
When a friend was suffering TD they mentioned some supplements that had helped. I don't remember them all, but did find this - Tardive Dyskinesia (Holistic) | PeaceHealth with more details here - Tardive Dyskinesia (Holistic) | PeaceHealth

I know often doctors just give another drug to combat the effects of the first - but sometimes a more natural way can be helpful