Learning to use Audiotool

This week I tried using a website that is used to make beats called Audiotool and I was completely lost the first time I tried it. I took the tour and kind of got the hang of it, I learned a little bit but I'm still confused. I don't know how to start making it. This is a lot harder than I thought. I'm going to watch a couple of Youtube videos so I can learn more and hopefully by next week I will be able to use the site well.

Here is a screenshot of the website.Can't blame me for being confused.