If you want to get ur nutrition in order you need to stop eating all processed foods. They are junk. If you dont cook it fresh dont eat it. Fresh lean meats like chicken breast, salmon, eggs, beef, tuna,etc. Good carb sources like rice, beans, quinoa. Lots of veggies. Lots of water. No alcohol, soda, etc. Have a structured daily meal plan. Im currently eating 5-6 meals a day.
Meal 1 8 eggs
Meal 2 1 cup cottage cheese and fruit
Meal 3 8 oz of meat 1 cup rice 1/2 cup veggies
Meal 4 same as meal 2
Meal 5 protein shake
Meal 6 same as meal 2
This is a basic meal plan. You need to first find your amt of cals where you wont gain and wont lose. From that you can manipulate carbs and fats to cut or bulk. Everyone reacts differently. I have a very fast metabolism so i burn a lot of cals daily. You need to experiment to see how ur body reacts to different nutrition plans. Dont do the plan above. It is tailored to me. Its a framework so you get the idea. It may make you gain weight whereas i am slowly cutting