Could be interesting to take a bootcamp the summer between high school and the start of college - for an engineering/CS student prior to entering engineering/CS college.
It could provide a lot of hands-on/industry context that might actually be pretty motivating prior to going deeper into the more rigorous math/CS (i.e. O(n), proofs, data structures, compilers).
Maybe things have changed but back in my day - interestingly a lot of undergrad CS coursework did not cover practical stuff until much later (i.e. which made you clueless for freshman and sophomore summer internships) or you picked it up outside of the curriculum.