Finding work, question.

Dear Actortips,

Thank you so much for the resources you have provided! My question relates
to finding work without an agent as one as not really interested in me yet.
I'm trying hard to perfect the craft by taking acting as an elective at
college during my final semester right now, and it seems the only work I
can find is an extra in movies and tv shows that are filmed here in Chicago. I've discovered I have a passion for acting in Film but am having problems finding work that I can
actually get creditted for, along with finding auditions and casting calls.
How do I get more work and experience?

Thank You,
Sam