Progress is compounded
While the basic idea of weight loss is daily caloric deficit, and this is what makes us understand how we should tackle each day, and it gives us a way to understand progress and hiccups, I think the journey involves several momentum forces that get compounded over time.
If you nurture your body, and learn about new ways of doing so, and you make your body stronger as you eat better, and you exercise, then not reaching caloric deficit some of the days is not going to hinder your progress.
It's not all about calories, it's about making yourself better each day, there are several ways to do this, not just burning fat.
If you ensure you become better in several ways each day, and you reinforce the habits that make sure you do, then you are moving with lots of energy towards a certain direction. Even if you don't lose fat in some days or weeks, you eventually will do that and more, you will reach your goal, as long you keep becoming a little bit better.
Becoming better is also not just about eating well and exercising. It's about learning, finding and appreciating peace, getting and perfecting your knowledge on how to optimize your body, mind, skills, your life in general.
This process is in my opinion how life should be lived, it's the way and the destination. Living in peace, knowing that you are doing efforts to make yourself better, tackling each day with satisfaction, curiosity, and excitement.