When I was a middle manager I found the Franklin-Covey system helped me a lot with staying organized. I don't use it now, but am considering a return, as I imagine being systematically organized every day is a lot more tolerable when you're sober.
Franklin-Covey basically boils down to making to-do lists everyday of tasks which you then prioritize by importance. Undone tasks carryover to the next day. And there are some long-term goal-setting tools in there, too. So it's a lot of planning and a lot of lists.
Some people love that kind of thing, OTOH it drives some people nuts. The benefit is you cannot help but be a paragon of orderly virtue. The downside is . . you cannot help but be a paragon of orderly virtue. (It's hard to feel good about blowing something off when it's been on the list for three days with an A-plus priority, so that can be a real drag.)