Is there such a thing as an effective way to manage acne?

I have been under a lot of stress lately due to frequent breakouts. I would like to know about overall acne management, ranging from choosing a cleanser and the order in which to apply basic skincare products to dietary habits I can practice in my daily life. If anyone has seen some soothing effects from home care alone, sharing your routine or tips in detail would be a great help to my skin care.