Incoming BB FIG SA from a non-target Liberal Arts College, how can I prepare?

I am an incoming summer analyst within the FIG Group at a top BB (Think MS, GS, JPM). Looking for any insights and advice on what I can be doing over the upcoming months before the internship starts so that I can best prepare myself to kill it this summer. I go to a non-target Liberal Arts college, so I've had to teach myself/reach out to alum for the majority of my IB knowledge, so really anything helps. Obviously FIG is a different animal within IB, so I would appreciate any suggestions or resources I could use to make sure I'll hit the ground running in June.