Need help writing about my internship in my resume?

Hi Guys,I'm in my freshman summer and my internship with a boutique investment bank is coming to a close. I feel that I have a lot of great experience, except after writing it up, it's probably too long for one job on my resume. I do think, however, that this internship deserves the most space because it's directly applicable (obviously) to my attempts at a continued future in IB. Anyway, I worked on both sell side advisory and capital raising deals. Some of the stuff I did was create Pitch Books, CIMs, buyers lists. I used FactSet for research and screening tools. I did a lot of market reseach for the previous items using internet resources, FactSet, and EDGAR. I spread financials and produced extra summary data (ttm, YTD, run rate, etc). I learned how to and assisted analysts with building DCF, LBO, and Precedent Transaction models. I emphasize assist because I'd be lying if I didn't say they held my hand with modeling. I wrote this all much more eloquently on my resume, but it's really long. I could use some help compacting this. I don't expect my resume to be written for me, but maybe just some general tips if possible.As a young student, I'd be greatly appreciative of your guy's input and expertise. Thanks!