How can I get into a ivy league university?

I know this is a stupid question, but both my parents went to ivy league universities. And I feel so much pressure, idk what I want to major in and everything but all I know is that I wanna get into an ivy league uni. Hopefully someone could tell me how hard I should study to get in? What text books to study? I want to get into cornell so can anyone tell me how hard I need to try. Actually any ivy league uni is ok. Which subjects do you guys think is the most fun to study at uni? Basically, just how to get into them? I don't really care which subject I major in as long as I get in and afterwards get a good job. Though I am a tiny bit interested in acting....:/ anyways thanks for your help!!