Transfer into Ivy League

<p>I am currently a senior in high school. I understand transferring into ivy league is very hard and I don’t expect to get in, but I am going to try. To maximize my chances I know that the summer between high school senior year and freshman undergrad must be spent productively.
Does anyone have any suggestions on what I should do this summer?
I want to be a biology major (premed). Are there any summer science/ medical internships in NYC?
I am very into film and my brother (who is 23) and I, who know a lot about directing, are going to direct a short film in the summer and submit it to Sundance Film Festival. Would this help to put on college apps?
I did not do well my freshman year of high school so my GPA is 92.06, but I got a 102 average junior year and 104 average first semester senior year. My SAT scores are 2150 and I am a Hispanic female. I have a lot of extra-curriculars.
Obviously I will work very hard freshman year to keep up a 4.0 GPA.
Is there anything else I can do to maximize my chances of transferring into ivy league? (I will apply to tranfer first semester of freshman year) Thanks.</p>