There are currently around 20 demo servers open. I would go online, try perhaps fusion server??, be nice, drive carefully trying not to hit anyone, get chatting and I'm sure you will be eventually invited to a private server for some fun without any wreckers and idiots.
I am not into drift as yet so perhaps a drifter would be the best person to help you. Unfortunately admitting your a drifter on these forums will likely get you limited response I'm afraid. Each to there own I say
Have fun it's a great sim