I put myself in a situation where I can focus, if my to-do list is course work. If it’s Chores I turn on a show I’ve seen a thousand times and I clean while it’s on. It helps me not feel bored. It can be difficult for me to prioritize, since I am disabled and my symptoms make it hard to garauntee plans in advance.
Making it so I can only do the thing I need to do, like going to the library
A1 Talk with X
A2 Buy bread
A3 Call Y
B1 Buy Presents
B2 Clean up
C1 Watch Avengers
C2 Practice chess
C3 Go shopping
This is a fast and easy way for me.
Lowest priority are things that would be nice to get done but not really important, or things I don't want to forget about.
The piece of this answer that tends to be overlooked or skipped, probably because it's assumed to already done, is your personal values. This is where the middle variances of priority come into play for me. I'll use myself as an example.
I value my family above all. I'm going to school to improve my situation. This is my secondary priority. Work is a tertiary priority in this case.
A family item that's not crucial might be a step above the lowest level. School deadlines are probably going above most family items… except family deadlines or work deadlines that could cost me my job.
I currently work with four levels of priority. Items can fluctuate priority based on the above criteria.
Hope this helps. Good luck!
Then I pick the top 1-3 tasks and put them at the top in order of importance.
Then I write down times in 30 min increments and out the tasks from the original list on the new list in the time slot that would work best for my day.