Do You... Well!
The one thing that no one can be or do better than you is be you... so do you well! It's as simple as that. We concern ourselves with the opinions of others so much that we tend to forget that our opinion of ourselves is the most important and valid one. Like what you like, do what you like, and love yourself along the way. Why? Because at the end of the day (literally) you are the one who has to reflect on what you've done and why. If you live for others, you'll never really live your life to your fullest. Just be you, everyone else is taken. Plus... you're cool! So be cool how you be cool! I know I will.