Basically, IT. WAS. AWESOME.
It just felt so good to be swimming for me and no one else. When I got tired (which was inevitable considering it was my second time swimming in MONTHS) I just slowed down. I didn't get upset or frustrated like how I used to. Instead, I just took it easy and enjoyed being in the water for the sake of working out.
That was my trial swim, and it went so well that I think I'm going to stick with it! :)