I need to ask lawyer a question?

also do i need a lawyer .....what happens after a arrest for shoplifting ....47$ ..2 earrings ..iregret it .iwant to close the door on this ..its not tolerated ....ts a crime..ifeel totally unacceptable...my ?????is what will happen before the judge besides the obvious what will he ask me ,can i ask to get this expunged so that my work applications do not need to be involved b/c that will pick up unfortunate issues.. i regret it ..and want to close the door on this ...i have to appear before a judge help is needed...