What should I do? I need legal advice.?

I got caught driving without a license. i got a citation to go to court. so i went back like 3 times until finally they said i would have to pay a $300 fine and they made another date for me to come back to make payment arrangements. i left my paper work in my friends car and i totally forgot about it. i missed my court date and im pretty sure the paper work said id have a warrent out for my arrest if i didnt show up. i have the money for the fine in whole. my question is whats the best way to do this? should i just show up at the police station with the money or? I dnt know what to do. this has never happened before. iv never been in trouble wih the police before....please help me out...