To switch to proper nutrition, the main thing is to observe gradualism. Any attempts to "diet from Monday" end in failure just because they are too radical. Try to negotiate with your body gradually, and the transition to proper nutrition will not seem such an incredible task to you.
1. The main evil. First, you need to identify your most destructive addictions. Do you like sweets or fast food? Are you used to chips or sugary carbonated drinks? We begin to eradicate the main bad habit. This step is the most difficult and should be done gradually. In this case, one should not spread over to other "harmfulness". Stop eating sweets after 5 pm. Reduce fast food to one visit per week. Replace chips with popcorn or crackers, soda with juice. You will not change anything drastically, but it will be an essential step on the path to proper nutrition.
2. If you want to eat, drink. The next step on the way to proper nutrition is the normalization of the water balance. Your goal in the second step will be to consume 2 liters of clean water per day. Drink a glass of clean water in 30 minutes. before every meal, drink throughout the day. If before that you did not consider it necessary to regularly consume clean water, you can be sure that the result will pleasantly surprise you.
3. Get enough sleep. Yes, don't be surprised. Sleeping for 7-8 hours will save you from the need for constant “recharging” with something sweet. And the state of health will improve significantly, and you will work more efficiently.
4. Look for substitutes. It is not easy to eradicate the love of sweets, but you can always choose healthier foods. If you add honey, not sugar, to cereals and tea, then you will receive a whole set of useful elements as a bonus to sweetness. For tea, you can buy halva or kozinaki - they are cheaper, and the skin condition will improve. If you like salty foods and all kinds of flavor enhancers, it doesn't matter either. Try adding natural spices to your homemade dishes - peppers, herbs, garlic. You can find many harmless spices with a natural composition (without flavor enhancers) both in the markets and in stores.
5. Simplify your meals. Remember that the combination increases the calorie content of foods significantly. Even the usual vegetable salad can be fraught with evil in the form of mayonnaise. It is always worth considering all additives in ready-made meals. It will be much better if you eat just chopped vegetables or a second course without sauces.
Of course, these were just some of the tips for making the transition to proper nutrition, but they are a solid foundation for a healthy diet and lifestyle.