I thank you all ever so much for the advice regarding GPU overclocking as well as fan RPM speeds.
I've settled for this profile for tonight, I managed to get +200MHz stable without artifacts (at least from the 20 minutes I played CSGO) and bumped up the power limit a bit.
I also re-adjusted my fan curve to be super aggressive and now my GPU maxes out at 65°C. I could go for an even more aggressive fan curve in the near future but this will do for now.
Again, thank you all so much for helping a noob overclock her GTX 1060 over the course of 2 hours.