I can see Jenny as one of those people who works the ticket booth at the movie theater until she's in her late forties and going bald.
Seriously though? Bartender at a nice club. It's social, relatively easy on people who aren't math-minded or booksmart, and it's more interesting than a deskjob. Probably your hardest task will be memorizing all the drinks, and I'd guess you already know a few anyways. May not be a glorious job, but it could pay the bills without leeching your soul a little bit every day.
Insults aside, I could actually see Jenny doing pretty well in that sorta job. This would also let you choose whatever degree you would like to have simply because you enjoy it, as I don't think you need a degree for that, only a license.