1) You wont look like a fool, lol. With a face and body like yours you make anything you do look a bajillion times awesome.
2) The fat kid has been playing for more than 5 years if not itg then ddr. And even though it has a physical aspect it still takes practice to read the arrows at higher speeds and coordinate your steps.
3) Yea they are always going to be like that :P
Just play it lol, it wont kill you if you try. ;D