Believe it or not your skin tells you stories. It tells you when you are eating unhealthy out of your normal pattern, if you are dehydrated and if you are stressed out. The best thing you can do is change your skin care routine to products geared towards your skin changes. For instance, when I broke out from a foundation I got new skin care. I like drug store products because they are affordable and they work just as well. I started using Neutrogena Naturals face wash and Neutrogena Clear Pore astringent that helps to dry out any pimples. It also prevents breakouts. If you have dry skin try a hydrating mask and moisturize in the morning and at night. If you have oily try to introduce more water into your daily diet. Also there are different primers geared towards your skin type. You can use a hydrating primer for dry skin with or without an oil serum which has nourishing benefits. There are mattifying primers for oily skin, and also mattifying primers with salicylic acid (used to treat acne) in it to prevent breakouts.
Make your skin a priority!