God isn't against sex. He
created sex, and everything He created was "good". He's against sex outside of where and what it was meant to be - not against sex itself. That's a gross misrepresentation, but sadly one that is quite common, even among Christians. As for drugs, if you're referring to harmful, addictive drugs, not used for medical purposes, then yes, God does not want us using them. Why should he want us to be a bunch of drug addicts? And as for Rock and Roll....I like rock music myself, and I've yet to find a Bible verse, or receive any message from God that there is anything inherently evil in Rock and Roll. Some songs and bands may not be good to listen to - but that's a matter of personal choice and conviction. There was no 11th Commandment, "Thou Shalt not listen to the Rock and Roll".
He's always existed. So, in a way, He created himself.

Just try and wrap your mind around that one.
It's not - unless God is real. And if He is, I think we would be quite annoyed to find us more interested in His creations, or others creations, than Him. If someone you loved dearly came to love a painting you painted more than they loved you, and began paying attention to it to the exclusion of you, wouldn't you be put off? I certainly would be.