[WhisperingSilence]

Hey, my dad is a functional alcoholic (this means he can do stuff during the day such as household chores etc), I know its hard to tell people who you know what's gone on/is going on because it feels like you shouldn't tell anyone, but I really think you should tell someone what's been going on, because if they don't know they can't help. Staying quiet is not going to help the situation, I can't tell you exactly what will happen when you tell your outpatient program or an adult you trust because each situation has different outcomes etc, but that being said who ever you tell - whether thats your outpatient program or an adult you trust they will want to help.
It's really important you tell people what's going on, as support can then be put in place, and it really sounds like you could do with some help and support.
And you are not doing anything wrong by telling someone, in fact telling someone is probably the right thing to do as you can then maybe also get support for your siblings etc too.