Du ska studera och inte turista? Då behöver du antagligen ett studentvisum, jänkarna brukar vara übernoga med sådana petitesser:
You must have a student visa to study in the United States. Your course of study and the type of school you plan to attend determine whether you need an F-1 visa or an M-1 visa.
https://travel.state.gov/content/visas/en/study-exchange/student.html

Edit: Läste på samma sida:
Citizens of Visa Waiver Program (VWP) participating countries who intend to study cannot travel on the VWP or on visitor (B) visas, except to undertake recreational study as part of a tourist visit.
Så din relativt korta tripp kanske inte kräver visa ändå.