I watched it as a young teenager and hated it. Couldn't understand what was going on, thought it was too slow and long to be interesting.
Cut to now and Interstellar is one of my favorite movies; I wanted some reading material with the same vibe, so I picked up the book of 2001 and I'm loving it so far.
Time for a rewatch as an adult I think.
I did it for seven years. I recommend earplugs and a white noise machine when you sleep. Stick to a strict sleep schedule. Take lots of Vitamin D when you wake up. I was taking 5000 IUs a day when I was on overnights, it helped immensely.