My keyboard got a little wet and is now typing by itself and delete is not working. Do I need a new keyboard or will it dry out and work?

First you should disconnect it from the computer. Then let it dry out and keep your fingers crossed. You might also want to try to vacuum out as much moisture as possible - put a sock over the nozzle when use it because keys do pop off and it's not fun digging through a vacuum cleaner bag to retrieve them.