I've been following The Sleep Doctor https://thesleepdoctor.com/ for a while now and have been implementing his suggestions into my life as well as suggesting them to my clients. One big thing you can do right now to ensure you have optimal energy all week long is to go to sleep and wake up at exactly the same time every day. Do you tend to try to "catch up" on your sleep over the weekends? Turns out this doesn't prevent metabolic dysregulation or overall energy according to a new study on the topic.
Remember, no matter how important you think that next "to do" is, nothing is as important as rest. You'll get everything you have to do, done in way less time if you're well-rested. And! You won't be nearly so cranky. And! Your waistline and your overall health will see dramatic results.