Good luck!
I think there is a fairly high success rate for these procedures, if I'm not mistaken. Just to cheer you up a bit there. Yes I had a leep & it was successful.
PS, Why do you have to go right back to doing strenuous work? I see you're in the US--you may be covered under the laws that allow you to request temporary job restrictions so you don't injure yourself. You may also be covered for a brief FMLA leave while you heal, if you need to be out of work entirely (and your employer is large enough to fall under FMLA). All you usually need is a doctor's note and to fill out some forms at your job.