Taking my son to see a counselor, having issues with mom.. worried about what will be discussed

Long story short: wife has BPD, it causes a lot of emotional instability in the family. I have ignored it (enabled) and tried to make up for it. I am starting to have issues myself , saw a councilor and signed my son up for one when I saw him digging a pencil into his arm scratching it (12)My wife / his mom smokes pot, a lot of it. I think he knows , if he tells the counsel this what implications will this have ?I know I need to talk to her about a lot of shit, including the pot, I’m learning how to do this.Edit: by implications I mean is DEFCS going to show up at my door via /r/Parenting https://ift.tt/2pCxRFL