Sounds like you got some good goals and good plans for yourself!
On the work - is this something you have usually done? Did he ask you, or tell you to do these things? Does he work more hours than you, and is he at work or is he away with OW? Do you have a division of chores that is fair? Those would all be things I would consider before I did chores for him.
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17