Me, I did things a bit differently since I don't own copies of the songs used in the tutorial thing here(and I'm ridiculously rule/law/proper-conduct abiding)...I basically just searched for some random DDR songs in games I have and some Touhou stuff, and played the Easy maps for my start. Now, a bit under a week later, I can handle some maps between 3.5-4.5 stars, so I guess another good way to do things is to pick songs you already know that you like, if you find a .osz for it, so that you already have the rhythm down so it'll be easier to understand how the notes are supposed to flow together or something.