Sunday night is a great time to find out two things (assuming that you “go to work” on Monday morning):

1. If you’re genuinely excited about what you do for a living.
2. If you’ve set yourself up for a productive week (even if the first item is true).

Momentum is a powerful thing, and the energy you take into a new week is like your turn when bowling or making a play (good or bad) on a sports team.

If you do well, the positive energy flowing keeps you in a healthy mindset to continue doing the same. If you perform poorly, you’ll have a hard time recovering.

I remember when I was on a plane twice a week for work. Sunday night is when I would pack and consider the tasks for the day ahead: the mountain of email, the early morning flight, the weather where I was going (harsh winter, invariably…), and the fact that I didn’t enjoy the work.

As I’ve mentioned more than once, it resulted in me making some changes, with the worst of the culminating in multiple anxiety attacks one weekend.

When I was 17, I read a quote that went something like: “If you live each day as if it was your last, someday you’ll most certainly be right.” It made an impression on me, and since then, for the past 33 years, I have looked in the mirror every morning and asked myself: “If today were the last day of my life, would I want to do what I am about to do today?” And whenever the answer has been “No” for too many days in a row, I know I need to change something.

-Steve Jobs, 2005 Stanford Commencement Address

Your situation might be as dire as mine was, but reflecting on how you felt last night my be an indicator of — at the very least — some things that need to be tweaked.