Great advice! I attended a conference of the American Concrete Institute recently, and one of the best seminars was on 3D printing of concrete structures. NASA has tasked a few universities to develop the technology. I wish I were in grad school again! That sounds cool. And it’s in its early infancy - the photos the professors shared were of big blobs of concrete squirting out the hose. They have a ways to go, ha!
I agree that you won’t have a lot of time for liberal arts. There is SO much to learn to become an engineer. Besides basic core liberal arts classes, my non-engineering electives consisted of tennis, racquetball, and two semesters of astronomy. That was all the time I had!