I believe that your parents will find out eventually, and it would be better if the information came directly from you.

Now: as a momma: I have to say this:
GET YOUR ASS TO CLASS!!!!!!!

(and then a big hug )

College isn't simple by any means, but it sure is a lot easier than at working fast food places.

Good luck with your studies and also with your family: I'll bet you'll find them to be a lot more understanding than you're giving them credit for.