Do you know what your training maxes are?
I would say make sure you start very light and just run the original program for a couple cycles to see where your at.
Whenever I have come back from layoffs I always seem set my TM too high. Then I end up starting over after dropping it.
If your getting Forever you will be able to get things figured out fairly quick once you read it. It has several concepts in it that make sure you are never training with too high of a TM. It even has a prep program that is for beginners or people coming back after layoffs.