Soon, it will take you all night to do what you used to do all night.

As others said, take care of your body. Including your teeth. My dentist once told me "You'll find that you enjoy pain even less when you're 70 than when you're 35..."

If you are still renting (or living in your mum's basement), stop. Buy a house....it remains on average the best investment a person can make.

Don't drink or smoke...the cost alone is a lousy way to spend money. The true value of money lies in insulation. Money insulates you from the cold, the hot, people, hunger, noise, sickness, and boredom. Whoever said money can't buy happiness must have never had money.