Living is running away from death until death catches up then it's over.
Live with purpose. A climber on a cliff face only needs to let go. But they always find something to hold onto because they have a purpose. When you lose your purpose, death is that much closer to overtaking you.
Don't worry too much about living a long life. Most people who're in an advanced state of aging live very isolated, immobile lives. They can be draining both on themselves and others. It's better to live with purpose, to live large and full, and die at a ripe old age but not so old that you're tied to a chair or bed all day. A man that dies at 40 but lives big lives longer than a man who lives 80 years but lived most of it in his house. Be a positive influence on others. Enrich their lives. Dream. Be explosive. Be dazzling. Make waves.
And listen to the dreams you have. They're there to teach us about potential realities. Learn from them. And if you want to know someone, the best way is to know what they think about things that're unfamiliar or not well understood. When we're confronted by something we do not understand well, we tend to fill it in with what's inside us. This is how we see others in this way.
Try not to fear death. The ultimate virtue is to lose all death anxieties. It's the most empowering thing you can do.
Above all, leave your mark. This way when you do die a little bit of you will still remain in the world.