Welcome! I know where you are coming from and there are a lot of good resources for the children of alcoholics. Doesn't matter if your dad was high functioning or a falling down drunk. Having an alcoholic in the house creates a strange family dynamic, regardless. Now you are old enough to really address those issues and you are very smart to be here, among friends.
I am really new here too and these people know alot. Take some time and read the posts by members. I am attracted to user icons and follow those users whose interests might be like my own. By doing that I have found communities within SR that interest me. I learn alot by reading the progressive posts of others and see how they have done over time. It feels good to see people come, stumble and recover. We all stumble, but it is the recovery that is inspiring. Maybe one day your dad will recover. It happens. Take care of yourself for now. Glad you are here.