I created the website you're currently on today both as a personal record of what I've done and as a kind of portfolio to show people what I've built.
Right now it's pretty simple, but over time I will likely add more. Currently you just have the homepage, this blog post, and a few of the projects I've made. Some of them are just images or videos, some are games I made that I exported as WebGL to be playable on here, and some are currently running websites. I've created much more than what is currently on the website, but when you're 13 years old you don't really think about these kinds of things.