Yes having your h in the house is probably better for you financially and in terms of seeing your son more often but in many ways this is enabling his alcoholic and abusive behavior.
I don't see how you can create any boundaries with shared finances and in the same house?
I didn't follow your thread on newcomers but I am proud that you have used therapy and medications to help heal yourself. I too used those tools and am so grateful. I have also found alanon very helpful and it's given me A great group of mom friends that I would have never met otherwise
---- M 39 H 35 D5,D4 M 4 T 9 ILYBNILWY 5/18/11 Left 7/11/11 Divorced 12/1/13