im not the best Peach but i try to give all the help i can to anyone who ask. for floating attacks spacing is key. since peach can freely move around while floating and attacking at the same time you can attack and advance like: Floationg Bair to Zair. or you can use it to retreat like floating Fair or Zair and move back at the same time. also learing when to float and not to float and attack is also important since sometimes it might have been better to do an aerial while not floating, believe it or not lol, than to have floated and done it. Btw did you know that while floating as close to the ground as possible Peach's Fair can hit people holding onto the ledge? i never really ground juggle much so you do that better than i do lol.