Yes, everything has been done before, BUT, it has never been done before the way YOU could do it. So then, get creative and do whatever strikes your fancy; paint, draw, write, play music and just have fun.
Take risks, have adventures, and do things you can look back on at the end of your life with pride. Join a group of kindred spirits and have some laughs together on a regular basis. Enjoy ALL the days of your life.
Celebrate your weirdness, it makes you unique! Re-vision yourself and get excited about YOU. Enthusiasm is infectious, get the bug and spread it around!