I relate and feel for you.
Daily stepwork Alanon/ACoA helps me with the anger and guilt and to keep my own life on track. Before I made that program my own recovery focus, when my family was doing what it sometimes does, I got overwhelmed and could not function. I tended to twist the anger against myself... I guess that is the guilt in part. Also I had damage that needed help to heal even if my family was magically instantly 100% better.
For the other parts, you seem like you are already figuring it out... schedule seeing him or calls early in the day so you never have to deal with the drinking.
Maybe figure out what you want to do for him (based on your own values) and structure that as much as possible 1) on your own terms and 2) so it is predictable. The predictability part is so your dad knows he will get your attention on certain days/times, it may cut down on some of his acting out.
You get to feel negative, but there wasn't really anything negative in what you wrote. Just hard stuff.