I think if you get into one of the top privates, you’ll get a good deal of help, or stick with Purdue … it’s a luxury to have such a great school in-state…
Also It’s been a while, but I found Cornell (I too was a CS major) to be a lot of work, it was not insanely difficult. Just the right amount of work… you also learn to find classes where you can cruise a little (like Econ classes). I think it’s true of any college you’ll be in - take as many project courses as possible - you’ll learn the most … and forge the best relationships with teammates!