Sid Vicious began the age of participation in which everyone could be the artist. Sid proved that you don't have to play well to be the star. You can play badly or not even at all. I endorsed that attitude. If you can't write songs no problem - simply steal one and change it to your taste.
I cannot stress enough that the answer to life's questions is often in people's faces. Try putting your iPhones down once in a while and look in people's faces. People's faces will tell you amazing things. Like if they are angry or nauseous or asleep.