keep your chit together. Think of your son, he needs a strong and confidant father. You are doing great and crying is nothing to be ashamed of. You are a human being with feelings, you are not a rock.
I think you need some midterm goals to keep your focus. Until your condo move that was your focus and you directed your actions accordingly. Find a new focus ASAP. And lay off the bottle. Your son needs the best father, bring your A game now. I know you have it, you showed you have it, time to shine now!