I missed court and I got issued a warrant for my arrest. what's the best way to deal with the situation?

Many courts have ‘add on’ processes if people show up with outstanding warrants, to be added onto the judges docket that day and get the warrant removed and the case re-set for a court date. You might call the court where the warrant is and ask how they handle that - or hire a lawyer to straighten it all out for you.  Alternatively, the warrant likely has a bond set on it ($500) and you could turn yourself into the local jail, have the bond money available and post it immediately - and get out (in a few hours of processing) with a new court date.