How to prepare for (Electrical) engineering?

So I'm in my second to last year of secondary school and I'm looking at university majors, and I think I wanna do engineering, I'm probably going to UGent so al,l except industrial engineering and Engineer-Architect, engineering degrees their first year is general (so dont have to choose yet) but I think I want to do something like electrical engineering. Even if I'm not, I guess I have to learn a bit of programming. How do I start? I have a little experience with python (print, variables, int, float and string, if and else, while and for loops, and a bit of function but that part I forgot) and I want to have a bit more. I can learn things without. But I need a concrete course with exercises. Which languages should I learn, which sites/videos/exercises should I do?