It's like @benc53 paying for the knowledge, not the part.

Sometimes the best mentors aren't the big names. Look for people doing the exact work you want to do, even if they're just a few steps ahead.

Tbh, calling it a "waste of cash" is putting it lightly. Honestly sounds like you paid for a mirror. I've heard good things about industry-specific mentors instead of general coaches.

Maybe you just got a bad set.

Yeah, the "hands falling off" part is what got me. After the 50th mug my wrists would just quit and file for divorce. I can see it now... a pile of lopsided bowls and a note that says "we're going to live with your mother, the keyboard.