Side-note: Doing everything is difficult, but I am finding it more rewarding than I thought I ever would.
I have found this to be very rewarding too. This helped me realize that I didn't need W, still wanted her, but didn't need. This also took pressure off of W too - some of our troubles were because of this co-dependent need.
I don't know how W feels about this - I sometimes think she feels like she has been replaced by nothing and now is resentful of that.
It sounds like you are doing well with S4. Keep it up. Any plans while S4 is with your W?
Me-45 W-44 S21, S18, D15 T-27, M-21 BD Jan 2014 PA revealed March 2014 In-house separation - April 2015 I filed - Aug 2015 She moved out Oct 2015