I agree with readerofbooks, it would be helpful to know what kind of website you want.
I would suggest that you try weebly (see the link below). You can sign up for free and you can actually create more than one site on your free account. There are paid accounts as well, which allow you to have online storage space, video, and other more advanced features, but the free sites are good value. You will have to choose what site type you want to make, and then you just drag elements to where you want them on your web page, type in your information, and you will have your own website.
I have my high school students make websites for class projects often. It is not hard to do. Just remember that once you publish it, anyone can see it. I would encourage you to do a good job and only post things that you will be proud to show to the world. Remember that what you post now can affect you in the future - once something is up on the web, you can never really take it back.