I don't eat any frogs, perish the thought.
What I did do, when I first got senior roles, was to read the 7 habits book.
For time management, the 4 quadrants one is a great way of prioritising work. And what you can actually just ditch.
Using Outlook, I'd estimate the time it took to do the worst task of each week, and book that into the first day and get it done. I'd not allow myself to be sidetracked until it was finished. I used to have to write quite detailed, constantly shifting reports that went to the Board, and the external stakeholders and so I'd base my work around getting that prepared and out and automate as much as I could to minimise repetative tasks. Whilst giving me 3 days grace to get it out for proofing and amends to the people that wanted to see it before it went.
I'd always try and find out what my deadline was on an item, and the moment it was given to me, I'd book the time to do it into outlook. And I'd rarely move it.
I worked from home so would be dressed and at my desk in the home office ready to work, I'd have breaks and lunch and be right back when I needed to be. With nothing to distract me, I got the work done.
If you are a perfectionist, just do the best you can to get 80% done and then leave it overnight and relook at it in the morning. Then make your amends and finish the job. Things that feel like they need perfecting at the end of a long day often aren't important the next day.