Information about an LPN Degree?

Hi I was just curious about what an LPN does? How long does the school take? Can you do online and in cl work? What do LPN's make can they make a living? I'm a NAVY wife living in Oklahoma City near Tinker AFB with my hubby. I am 21 and really want to get some type of career path started for myself, I need an education! I really want to be an RN but I need something quicker like LPN. Can someone tell me who knows of the job or has experience what I can do, I work 40 hours a week off on Sundays, Mondays and most of Tuesday. I normally work 10:45pm-7:30am So I sleep most of the day and I can bring my laptop to work.So could I get some advice and be informed about the job of an LPN? Thanks a lot!!