That's a really interesting path to have taken. Did you ever plan that ahead or was it just smaller good ideas building upon each other? I really think that educating yourself on a ton of different skills can be vital to your later career path. But I don't see myself finding a skill that I can make a job out of during my study. Not much GIS or Illustrator jobs without experience I know of. Well, that's the impression I got from the propaganda machines they call 'open days', visiting campus to get a rehearsed talk about how great the study is. They showed off how they made a machine students made to play darts. Ensured me how anyone who took the necessary maths in high school will be able to handle matrix equations. Sure. What they never tell you is the list you gave, where 80% of the students will land. Hard to sell, I think. those damn acoustic east-coast kids, ruining your consultancy dominance"building awesome contraptions" is something that most MEs don't do much of.
Which is how I ended up being the youngest acoustical consultant west of the Mississippi.