My solo was in 1978 when I was 15, in a Cessna 152.
We were doing touch and gos, and the instructor said, "OK, you are ready to do some on your own."
I taxied out for takeoff, took off, came around the pattern, touched down, and bounced a few times. I wasn't used to the plane being a lot lighter with the instructor gone. I stuck the landings better after that very first one.
The most fun I had was landing in high turbulence and high wind, and landing and taking off on a particular grass strip.
The grass strip I liked was one that had an asphalt runway running perpendicularly though it. It was higher than the grass, so you had to keep the nose wheel up when you crossed it, and the plane would do a jump when it crossed that area. I like that. You had to keep the nose wheel off the ground, but not so much back that you banged the tail.
The most-challenging runway to land on was one that had a plowed up area right at the end of the runway on a hot and gusty day. Getting it lined up was challenging with the strong gusts. And you'd get it lined up, coming in somewhat sideways because of the wind. Then you'd go over the plowed up area, which gave off large rising turbulence right near the end of the runway. You'd have to be highly reactive on the controls. Very exciting. Then stick it down and put in a lot of rudder to keep from weathervaning into the wind.