@jaketibbs I’m sure you’ll be thrilled to know Yale is a private institution then 
Not sure if you were accepted into the YYGS program. I actually attended the PLE session last summer. It was incredible and I met so many amazing friends that I still regularly contact. Going will broaden your network and invite you to a ton of other awesome programs. Don’t worry if your school lacks extracurriculars, because Yale will only view you in respect to what you have available. So take advantage of what you have! Also, get involved at YYGS!