There is no one right answer for everyone. Tips for dry skin won't help oily skin, and vice versa. Is there a specific issue you are trying to address with your skin care routine?
Acne isn't really affected by the foods that you eat, though eating a healthier diet is always a good goal for your overall health. This article has some good tips on skin care routines that can help clear up your skin: https://www.medicinenet.com/acne/article.htm
Some of our children had acne issues as teens, and washing gently with Cetaphil really helped. One important tip - do not try to scrub your skin intensely in an effort to remove acne, and don't over-cleanse. If you aggravate your skin, it will make the acne worse, not better. Just cleanse gently, and pat (not rub) the area dry, and let it dry completely before applying any cosmetics. Make sure to wash again before bedtime to remove any residue that has accumulated throughout the day.