Hi and welcome, Katie! Congrats on graduation. Be sure to check out the
Students and Novices board- there is a lot of great info there for younger stage managers.
Regarding freelancing - are there any specific questions that you have? Scheduling, budgeting, taxes, etc.
There are a couple of threads on the boards about freelancing-
here,
here, and
here are a couple of threads about it. If you have more specific questions, you can do a search for them (search bar in the upper right-hand corner of the page). If no thread exists about your question, go ahead and start one!
