In addition to the good tips already shared on this thread, I would add the following five tips:
1. Build a foundation for health. In your twenties it's easy to feel like you're invincible. That fast food and the five margaritas you downed the night before burn right off and you wake up the next morning feeling fine. This does not last. Start building healthy habits now before they catch up to you later. At 30, I'm still struggling with this one myself. Get in the habit of eating healthfully and exercising. Your body will thank you for years later.
