Since my wife and I are new divers every time we get in the water we're pushing the limits of our comfort zone. We have 47 dives in the past year, but only 6 have been solo dives. For the others we were in the water with a lead diver, DM, instructor, whatever. We were just playing follow the leader.
Three of those solo dives were this past Sunday diving off a boat in SoCal. Our focus was on UW navigation, but it was also our first SoCal boat trip. I missed the boat by about 50 yards on our first dive, 30 feet on the second, and came up at the ladder on the third. We learned alot.
I was surprised that I felt anxiety for the first time while diving. We later figured out that I was breathing WAY too fast, allowing CO2 to buildup in my system because I wasn't evacuating my lungs completely. The buildup increased anxiety I was feeling.
It is easy to push your limits when you're new. And the fun thing is that with diving, there seems to be no end to the limits you can safely push.