It must make you happier or you're just wasting your time. How much time you want to waste is up to you, of course, but a week should be more than enough. If you don't feel anything happening by a week at the most you just got on the wrong train. Same thing applies if you have come a long way with a teaching and a whole week goes by without bringing you any happiness. Time to get off that train and head off into the wilderness.
People are very suggestible.
I was going to ask you the same thing. Back in the old days I could get nine hundred years out of a body, regularly. I think you're avoiding the question. You grow old. I have nothing to do with it.