Invest time and energy in yourself every day. When you invest in yourself, you can never lose, and over time you will change the trajectory of your life.
You are simply the product of what you know and what you do. The more time and energy you spend acquiring pertinent knowledge and taking actions, the more control you have over your life.
Don't merely exist... Live. Do not become overly comfortable. Try new things. Follow your curiosities and passions. Take chances. Don't let fear stop you from a truly rewarding life.