Are you a perfectionist? You probably had an answer of yes or no right away, but some of us are situational perfectionists.
I would put myself in that category. There are some things I care deeply about getting just right and other things that mean very little to me (hairstyle being a great example).
Being a perfectionists is glorified to some extent in our culture, but it has a seedy underbelly. Perfection is the enemy.
In Jon Acuff's book Finish: Give Yourself The Gift Of Done, he has several great quotes on this subject that can help you.
1. “The harder you try to be perfect, the less likely you’ll accomplish your goals.” 
That doesn't seem right though does it? Think about whenever you've tried to start a new habit (going to the gym, eating healthier, running). You started off awesome and then one day you messed up. Missed a day at the gym, went to McDonald's, didn't run.
What happened then? For most people, that is the beginning of the end!
2. “This is the first lie that perfectionism tells you about goals: Quit if it isn’t perfect.” 
We think that Day 28 or Day 120 or Day 250 is the day we need to shoot for, but Day 2 is the most important day.
3. "The day after perfect is what separates finishers from starters."
How do you respond to not being perfect? Here's a tip- It's ok! I tell people all the time to shoot for 80/20. If you are getting in your workouts and eating healthy 80% of the time, you give yourself that leeway to have pizza on Friday night or a piece of birthday cake at a party.
Let's say you eat 21 meals in a week, that means you would need to get it right for 17 of them. That gives you 4 meals every week that cover those times when you are super busy or just don't feel like cooking.
Guilt is not a long term strategy for success.
And this doesn't mean you go and actively look for 4 meals a week to go fast food on. This just means if it happens, you're good. Just keep swimming Dory.
4. “You will not be perfect, but do you know what’s even more important than perfection? Do you know what will serve you for longer than perfectionism ever could? 
Moving forward imperfectly."