Used Stretchers Question For People With Ear Stretchers?

Question for people with ear stretchers? - used stretchers

I stretch my ears a little at a time, of course. But I have some questions first:
"It will if) actual start small (2 mm cut?
"How long to move up from a wide?
- What is measuring instrument?
"It smells really bad, what are the causes of this and let it go?
-Is the hole again to normal size if I stop by on stretchers?
"Any advice, tips and important facts?

Thank you!