Hi, i love swimming! do you like it?
I do enjoy it!  I am not very good at it though.  At what age did you learn to swim?
I started at ag 9 in school and had a few lessons. Swimming lessons is the process of learning to swim :) 
I feel like I may be too old for swim lessons.  Do they even have lessons for adults?
Yes of course, even from a young age humans can hold their breath underwater, within weeks of birth!