My dad didn't go to an ivy and still got a C on an exam he got a 95 on lol. That just further speaks to the fact that every school is different. That's why the LSAT is so much more important than GPA.
I second MIT_2017’s advice. Do a few untimed sections, get a sense of the type of questions that are “within your league”. Once your secure these questions, you should be able to get down to
I think you'll do well. This isn't true for everyone and on here it's impossible to account for all variables, but many times a high gradepoint makes it more likely that someone will get a high LSAT, and you went to an almost-Ivy for undergrad.