Why You Should Plan Your Fitness Routine for Your Worst Day, Not Your Best

By Cassie Therrien-Abell  |  Lifestyle

Why does the "perfect routine" approach always fall apart?

I think most of us have done this at least once. You sit down to build the perfect wellness routine. You map out yoga in the morning, a few days in the gym, meal prep on Sundays, some cardio sprinkled in. You look at it when it's done and think, okay, now if everything goes to plan, I'm going to be healthier than I've ever been.

And then life gets in the way.

A deadline gets pushed up. You're staying late at the office. Your kid wakes up sick at 2am and you're running on four hours of sleep. The whole thing unravels, and you feel like you failed.

Here's the thing: that approach was destined to fail before you ever started it. It's rooted in perfectionism. The idea that you have to check off every single box, all at once, to make any progress at all. And when the goal is perfection, consistency is almost impossible.

What does it mean to plan for your worst day?

This is a strategy I use with most of my clients, especially the ones juggling demanding careers, travel schedules, and families. Instead of building habits that depend on everything going to plan, you build habits that can survive when almost nothing does.

Here's how to do it:

Think back to the most stressful week you've had in the last three months. Really put yourself back there. What was going on? What was eating your schedule alive? How were you sleeping? What did you actually have the bandwidth to do?

Once you have that week clearly in your head, that's your baseline. Those are the conditions you're designing your habits around.

Not your best-case scenario. Your worst one.

Isn't that setting the bar too low?

Totally fair. But here's the thing about bars: a bar you actually clear builds momentum. A bar you miss builds shame. And shame doesn't get you to the gym.

Starting simple and sustainable means you can actually stay consistent. And the first two rules of genuinely lasting health and fitness are simplicity and consistency, in that order.

Once a habit is solid, you can build on it. The habit you actually do three days a week every week for a year will do more for you than the perfect six-day split you maintain for three weeks and then abandon.

How specific do your habits need to be?

More specific than "I want to exercise more" or "I want to eat less processed food." Those are fine directions, but they're not habits. They're wishes.

The problem with vague goals is that "more" can always be more, making the whole thing feel unattainable. Meanwhile, "less" can feel so restricting that you eventually swing back the other way just to get some relief.

Instead, put thresholds on either end of your habits. Not "I'll exercise more" but "I'll move my body for at least 20 minutes, three times a week." Not "I'll eat less junk" but "I'll have a vegetable with at least one meal per day."

Now you're collecting wins instead of just measuring yourself against a vague ideal you never quite reach.

How many new habits should you try to introduce at once?

One. Maybe two. Most of my clients introduce one new habit at a time. That's not a failure. That's actually how sustainable change gets built.

If you're reading this thinking that's too slow, I'd gently encourage you to notice that thought. That's the all-or-nothing mindset talking. The same one that's gotten you here before and will take you to the same place it always has.

One small, consistent step every week still moves you forward. That's not nothing. That's how it actually works.

Questions? We're here.