• drink plenty of water
  
• eat healthy
• get enough sleep
• wash your face at least twice a day
  
• pat your face dry
• micellar water is your best friend
• exfoliate every other day
  
• moisturize moisturize moisturize
• only touch your face when your hands are clean
• wear sunscreen when necessary 
• go makeup free when possible
• try to change your sheets/pillowcase every two weeks
• always take off all of your makeup before you go to sleep

**please note that this is what works for me personally and may not work for everyone