I have no Idea what I'm doing!

Hello! So I just joined, and I am pretty sure we can actually draw on here, right?
I don’t really understand what to do/ how to do it, and I don’t know where anything is.
But the main thing I came here to do was draw, can I? And how do I do it?

Downloads (mypaint.org)

MyPaint's community forums is sponsored by Altispeed. Click here to visit their website.