Had my first thermodynamics class today, and I got the good professor. I like him, he actually seems like a nice and reasonable person. I've only had one other teacher like that, but he was super busy and hard to access. This guy seems really involved with his students, even though he probably has well over 1000 of them.
Unfortunately, I also have lab in a few minutes, and I forgot to buy go have my workbook printed. Lab is 3 hours long, not taught by teachers, and involves lots of strictly graded reports. Labs are not fun, no matter what anyone says.
Also, Sigrid, I totally get the insomnia and ADHD combo. It's not fun.
Try doing some sleeping techniques, like the ones for lucid dreaming. Once I started doing that, all my sleep problems (well, the ones involved in actually falling asleep; now I just stay up too late) started fading away.