Don't beat yourself up over a choice you made NOT to get on the bike. Apparently, you aren't like me and remember ALL the fun of riding a bike as a child. My mother would let me ride my bike down the 1/2 mile lane we had in the country to get the mail at the box in the summer and I loved then being able to ride my bike on the oil road, since the lane was a dirt road and hard to ride down. I would ride on that road and love it for about five minutes then I'd have to head back home as my mother was over-protective and she was sure if I didn't get back in a set amount of time, I'd been kidnapped.
I never lived anywhere near a pool where I could have done lap swimming, so I never have been a good swimmer. You are lucky to have such a pool. ENJOY it now.