There's an old song, i think by Ella Fitzgerald, though apparently Bananarama covered it, that includes these lyrics:

Oh 't ain't what you do it's the place that you do it
'T ain't what you do it's the time that you do it
'T ain't what you do it's the way that you do it

That's what gets results

 Though it might not be the song's intent, for me it keeps reminding me not to worry too much about the mistakes I make in life, from time to time. 

If I go over on calories or I indulged too much on junk food, it's not the end of the world. It's all about what we practice.

Practice is the way we do it.

We want to practice more often the things we feel are in our best interest.

We want to practice less often the things that we feel hinder us.

 It's up to us to figure out, hopefully with informed guidance, what those good practices and bad practices are. We'll never agree, I think, on what those are. 

So if I mess up, I've just practiced a bad habit. That's alright. Try to practice the good habit now.

When I wake up, I will remind myself that I'd like to start my day with practicing good habits. Perhaps I will. Then it'll feel good, and maybe lead to another.

What habits do you want to practice?