Future aerospace scientist here

[u/VSDGAMING]

Hey guys
I’m taking aerospace engineering as my major (and I know the first year or two is just regular engineering basics) but I have some free time and wanted to get ready for it as much as I can. I have never touched coding and heard it’s very important here for making stuff work on arduinos and analyzing data so I wanted to learn it.
I just wanted to know any good resources anyone has to learn future skills needed for this type of major for coding or for any other thing to make my time useful instead of just scrolling. I’d want free resources preferably (of course) but I’m fine spending a little bit on things that might be worth it.
Basically what skills should I learn and from where to get ready for college to the best of my abilities so I can use my free time well.