Congratulations Cloudwatcher.
You will now find that one of the great delights of aviation is that there always more challenges and accomplishments ahead.
Perhaps none of them will give you quite the same buzz as the first solo, but there is much to look forward to.
I will never forget what I was told when I finally got my PPL - it is a licence to learn more.
So learn I did - and eventually got my CPL - even though that was not part of my original plan.
I now realise that what I don't know, and may well never know, far exceeds the experience and knowledge that I've picked up so far.
Have fun flying!