Before you week is over, tell someone you can’t.
That’s right, just say no.
Don’t let people delegate to you when you are full of your own plans. Just think about this for a few minutes. Have you been enlisted to do things this week? I have. Drive this to that place, go to this thing, find out that, etc. Constantly, flooding in via all channels.
How often do we say no? Calf rope. All full?
Say it tomorrow and get your projects done. You don’t have anymore bandwidth, you are fully committed.
Eventually, you’ll train them to approach you with balance.