The biggest insight I’ve ever had in making a dietary shift, is to not focus on what you are taking away (e.g. fried food, processed sugar, etc.) but instead to focus on what you are adding (e.g. more water, fresh fruits, greens, etc.).
Focus intently on what good things (or habits) you are adding and then you will find that the bad things will naturally have less room to fit in and you’ll lose appetite for them over time.