I don't know what you Americans are up with the pedal use? Here we control with the fingertip on the tourch. ( Picture ) But maybe there's both, I don't know, I'm used using this one.
It isn't really more difficult than MIG ( Co2 ) welding. Both process need concentration and a steady hand. For the TIG make sure the needle is not to sharp, and stitch out half the diameter of the round. The Amps you can check by testing, how's the melting bed or puddle. Don't hit the object with the needle. Use a light glass on the welding cap, not to dark! But that a personal thing. It's like they say a continous process: make a melting bed and than add the filling material, than move forward and make a now melting bed and add.. and keep doing the same. While welding keep focus on the size of the melting bed and how much filling material you put, so when done, the weld will look nice and smooth. Don't hold the torch to much on one spot, but try to move a bit back and forward, and keep the filling material close to the torch while welding.
Good luck.