If you are struggling with any of the concepts in Calculus, I would highly recommend visiting Paul's Online Math Notes or the Mooculus Course put together by OSU. Both are excellent resources for self study. If you would like help on campus, I would recommend visiting the Mathematice Academic Resource Center (MARC) on campus in Math 175.
The MGGG Redistricting Lab is a research group at Tisch College of Tufts University that grew out of an informal research collective called the Metric Geometry and Gerrymandering Group. Check them out here!