The Biggest Mistake People Make When They Say “I need to lock in”
- Fiona O'Connell

- 10 minutes ago
- 4 min read

Everyone does this.
They wake up one day and decide, “I’m going all in.”They say they’re going to the gym 4–5 days a week. They jump into some intense split routine.They overhaul their entire diet overnight. Sometimes they even throw themselves into a calorie deficit on top of it.
And for a few weeks… they’re "locked in."
Then a month goes by and they’re exhausted.
They start dreading the gym.They feel restricted with food. It turns into a chore instead of something they enjoy.
And eventually?They fall off.
Why This Keeps Happening
The problem isn’t motivation.
The problem is trying to change everything at once.
When you go from doing very little… to doing everything perfectly, your body and your mind can’t keep up. It’s not realistic. It’s not sustainable. And it’s not how habits are built.
I started going to the gym when I was 12 years old because my dad brought me. That’s why it feels natural for me now. Moving my body and eating well isn’t something I force, it’s just part of my life.
That doesn’t happen overnight.
It takes time. It takes repetition. And most importantly, it takes starting the right way.
Step 1: Stop Adding.
Start Eliminating
This is where almost everyone gets it wrong.
They think:
“I need to add workouts, add healthy foods, add structure…”
No.
The first thing you should do is eliminate.
Start by looking at what you’re already doing.
What do you eat on a regular basis?
What are your go-to snacks?
What drinks are you having every day?
Write it all down.
Then go through that list and circle the things you know aren’t helping you:
Fried foods
Soda
Highly processed snacks
Sugary coffee drinks loaded with caramel and milk
(And no, fats aren’t bad. But processed fats are a different story.)
Now here’s the key:
Do NOT eliminate everything at once.
That’s exactly what leads to failure.
Instead, start slow.
Turn those foods into a once or twice a week treat
Gradually reduce how often you have them
Give your body time to adjust
Because the reality is, life happens.
You’ll have emotional days.You’ll go out with friends.You’ll have moments where you want comfort food.
If you try to cut everything immediately, you’ll snap right back into old habits.
But if you ease into it?
You actually stick with it.
And eventually, something interesting happens…
You stop even craving those foods.
You start looking at them differently because your body feels better eating real, whole foods. You have more energy. You think clearer. Your mood improves.
It becomes natural.
Step 2: Nutrition Comes First Always
You can work out 5–7 days a week…Spend 2 hours in the gym…Sweat like crazy every session…
And still see little to no results if your diet is off.
At the end of the day:
It always comes back to what you’re doing in the kitchen.
That’s why this isn’t about going on a “diet.”
This is about building a way of eating where you naturally think:
“I don’t even want that it doesn’t make me feel good.”
That mindset only comes from going slow and being consistent.
Step 3: Keep Movement Simple at First
If you’re not working out right now, don’t jump straight into a full gym routine.
Start with the easiest thing possible:
Move your body more.
That’s it.
Go for a 10 minute walk in the morning
Another short walk around lunch
One more after dinner
That’s 30 minutes a day, without overthinking anything.
No complicated plan.No pressure.No learning curve.
Just movement.
Then, if you can, add in a few longer walks during the week. Pick days where you’re less busy and get outside for a bit longer.
The goal here is simple:
Do something you can actually stick to.
Something that doesn’t feel overwhelming.Something that doesn’t require mental effort.Something that becomes part of your routine.
Step 4: Build From There
Once your nutrition is in a better place once you’ve reduced the foods you know don’t serve you once movement feels normal…
Then you can level up.
That’s when you can start:
Building a workout plan
Going to the gym
Focusing on strength and muscle
But now you’re doing it from a solid foundation.
Not from burnout.
The Real Goal (That Most People Miss)
This isn’t just about looking good.
It’s about being healthy.
When your body is fueled properly…When you’re moving consistently…When your habits are aligned…
Looking good comes with it.
That’s the bonus.
But the real win is:
More energy
Better mood
Clearer thinking
A lifestyle you don’t feel like quitting
The Reality Is
The biggest mistake people make is going all in too fast.
If you want this to actually stick:
Start with elimination
Take it slow
Focus on nutrition first
Keep movement simple
Build over time
Because the truth is…
Slow is what makes it last.
If you’re someone who feels overwhelmed trying to figure all of this out on your own that’s exactly what I help with.
At Body Mind Optimized, I focus on making this simple, realistic, and something you can actually stick to not something you burn out from.
Reach out to me to get started.



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