If it’s any consolation to you, I usually get overtaken by events.
Example. It’s nearly 11 pm on Saturday night.
When it got to be 9 pm, I thought, “I’ll just look through the hymns for tomorrow and pick out some stuff to play before and after both services.”
That took two hours; not 30 minutes.
(The regular organist sent me an email today to say that she might not feel well enough to play tomorrow.) 😉