For Ivy Leagues and other top-tier schools, the low freshman and sophomore grades––even with an upward trend––will negatively impact your application, especially if you are unhooked. A 3.68 GPA falls well below the average range of such schools. Your 32 ACT is good, but even that won’t standout by itself. I advise raising your ACT score, taking SAT Subject tests, and continuing to increase your cumulative GPA>