Well done! Congrats on the first solo
It gets easier from here
Don't worry about the hours. I was one of those people who went solo very quickly, and I was very proud of the achievement. But the more experienced I get, and the more flying I do, the more I realise that that had more to do with my instructor and the weather, than it had to do with my own abilities.
Had I had a different instructor (like two I've come across since getting my PPL), I might have given up training without ever going solo. So to more I think about it, the less the hours actually say about me.
Enjoy your achievement, and rest easy that it gets easier (and more satisfying) from here on
dp