I know how hard ET is and I really feel for you. My dad’s ET started getting worse at around 40 and when he reached 65 it got to the point where he couldn’t eat without much difficulty, couldn’t write a simple note, use his phone to text, and many things we take for granted and it stressed him out to the point where he started to isolate; he lost motivation completely. It broke my heart and in 2018 I decided to call and email pretty much every doctor around the world who knew anything about ET and after many emails and phone calls I found a surgeon in South Korea and Florida who agreed to see him. A few months later they performed a non-invasive brain operation that totally cured the ET in his dominant hand (they couldn’t do both). It saved his life.