careful about fish oil caps, i got some salmon oil caps that strongly smelled fishy and my mom couldn't digest them.
drink enough water
cleanse everyday, scrub and mask every week or twice a week to get rid of dead cells and impurities
use gentle products adapted to your skintype
definitely try some food supplements for skin, hair & nails, my oiliness has really diminished since i've been using borrachio and evening primerose oils.
during winter, use more moisturizing products, even with oily skin.
use a night cream, what i do is a combo of oil and my moisturizer (which can be used for day or night)
use an eyecream, you need a specific product for that delicate area