I've had ET since 8th grade (I'm 75). When it finally got really bad (in my 40's) I saw a neurologist who prescribed primidone (used for seizures) and propranolol (heart medication). They have worked really well, although I still shake
to varying degrees. Cutting fabric calms me, so hasn't been a problem. I plan on looking into the Fiskars when it comes out.
If you do try the medication route and it DOESN't work, try a different propranolol. Generics are not the same, no matter what you're told! Good luck. It's a pain, but there are worse things.