Project Over the Summer

I am an admitted Freshman for the 2018-2019 school year for Computer Engineering. My experience in the field is quite limited but I wanted to do some general self-studying or projects over the Summer just to keep myself from getting too lazy. Anyone have any suggestions what I should do?

Try Project Euler
https://projecteuler.net
MIT Open Course, take 18.01, that will help the most with all of GaTech’s programs, and if you understand
all the problems on the final exam move on to 18.02, which is similar to Calculus 3 at GaTech.
https://ocw.mit.edu/courses/mathematics/18-01-single-variable-calculus-fall-2006/

Math prep is the single best study activity for most majors at GaTech, but also have some fun over your summer!

If you have not taken AP computer science, you may want to also study some programming.