That's right. Expect setbacks.
Nobody is perfect. Whether it's injuries or travel or lack of motivation, you are bound to have parts of your weight loss journey where you are simply not losing weight. This is absolutely normal. It is to be expected. This is me today.
It's my weekly progress pic. And here is my weekly step count.
My current weight is 2003 pounds. That's up from 1998. But it's not the end of the world. You're bound to have part of your diet or weight loss journey where you simply aren't losing weight. This is normal and to be expected. If you go into it with that expectation, weight loss is a lot easier. You just need to be patient and consistent and continue to lose this weight. What makes you think you could lose it all in a matter of months when it took you 20 years to put on that weight? Don't think that in 5 months you're going to lose all that weight. The goal should be to make sustainable changes. Don't think you're going to be perfect and have a six-pack at the end of five months. Lose weight slowly week after week and month after month.
The real champion isn't the person who loses the weight quickest. It's the one who lost the weight but kept it off.

