fallgirl, Today is a new day and a time for you to start anew. Instead of telling your sister and gf that you are not going to talk about the drama any longer, why not just stop and let the chips fall where they may? You do not owe them any explanation as to why the drama talking will cease. Start thinking of new topics for your conversations. Get the paper out and see what's happening in your area and plan to do some things that are totally different from your day to day routine.
Paint your son's room when you are ready to do so. Painting is a wonderful way of just thinking and letting your mind wander a bit as you are rolling or using a brush. If you prefer to wait until your h it back at work, but I certainly wouldn't let his presence hold me back if I wanted to paint.
It's definitely time to cut back on the driking. You do not want to get into the habit of having it handy every evening. It doesn't help w/what you've got going on.
Fallgirl, I know you are a strong and independent lady and it's time to dig deeper for that innner strength to help you along the way. No matter what happens, you are going to be okay. Keep your focus on your children and on you right now. God does have a way of dealing w/the lost souls.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.