How can i get rid of my REALLY dark under-eye circles and puffs?

I have tried everything to get rid of these stupid puffs and circles: cucumbers, tea bags, eye cream, eye serums, cold cotton balls, I drink 4 to 5 bottles of water a day, and I get at least 7 hours of sleep a night. All of these things have made a slight difference, but nothing is very noticeable. Oh, and I don't drink, and I don't do drugs... although people have actually asked me if I do. I feel like there is nothing else I can do, but these circles are really embarrassing. Is there anything else I can do?