l trying to figure out if it worth taking my car in the fix the light. l really do not think it is so im tryng to figure out how to do it and what type of bulb do l need to put in it. Can someone help me out?

go in the trunk, and remove the lining behind the tail light, remove the nuts that hold the tail light to the body. Then remove the socket by turning it counter clock wise a bit. Remove the bulb by pulling it out of the socket. It take a 3157 bulb. Good luck.