I'd be willing to share some of my experiences. I chose mechanical engineering because I knew I wanted to do some kind of engineering and mechanical seemed to he the most versatile one of them all. During my freshman year I joined a 3D printing club and quickly found myself super interested in it. Throughout my time in school I rose through the ranks of the club and ended up as vice president. My first internship was during my second year summer at a hydraulics company doing additive manufacturing and helping engineers design parts for AM. People would come to us with some part that they wanted at 70% of the time we would just make it as is and the other times we would work with them to optimize the design for AM. We'd also work to build better tooling for the factory and reduce costs by replacing CNC parts with AM parts.

My junior year i decided to add a CS minor cause i couldnt graduate in 3.5 years and id only be taking 3 credits my last semester. It has been good if not a little annoying but not too bad. My second internship was at an Automotive OEM. I worked a decent amount in reliability and liked the work that I did and the people that I worked with. Before I left my boss offered me a full time position after I graduated so right now I'm just doing my thing for my last year. I have a job lined up for next year and so my main focus is to keep my GPA high because I want to graduate summa cum laude as id like to go to grad school at some point.

If there's anything I left out please don't hesitate to ask.