Heading or Heeling

I just started roping and I can honestly say that everything has been self taught and slowing down youtube/rodeo footage. I wanted to be a header because I plan on going on to do tie down roping but there is a clinic coming up and they need more heeler's. It seems that everybody wants to head but I've honestly never attempted it. I rope a dummy and sometimes my small human... Is the transition to start and change harder? Or can someone shed some light and help me out?