Stick to your plan throughout the week (even on weekends)

It usually leads to weight regain which is eating healthy on weekdays and cheating on weekends.

This mentality often leads to excessive junk food, which can make up for weight loss efforts.

If you become a regular regularly, you can gain more weight than you lost in the first place

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3740215/

Because of that, research shows that those who follow a consistent pattern of eating throughout the week are at greater risk for long-term weight loss.

https://pubmed.ncbi.nlm.nih.gov/16002825/