Many of us fall prey to this type of thinking.
If I stopped working out for a few days, I might as well quit.
If I binged while watching television one night, all my hard work is ruined, I might as well eat junk food.
We all have ‘off’ days and we all slip up. Don’t think of it as messing up. There is nothing wrong with taking a rest once in a while and a few bad days will not suffice to hinder your progress. The most important thing is to be consistent with all the good habits you have cultivated and I promise you, you will see results.