I'm really struggling against Peach. The main problems I'm having are that it seems really difficult to hit Peach without trading due to her abundance of fast, good priority moves, especially dash attack, nair and bair, and trades are substantially worse for me than for Peach. She's also impossible to edgeguard, so sending her offstage doesn't seem particularly rewarding. Most of the moves that I use to win neutral (bair, nair, up tilt, ftilt, shine, dash attack) do not lead to kills or kill setups once Peach has reached 80% or so so Peach lives to ridiculous percents (130+ every stock.) I don't really struggle with neutral, I mostly struggle with the ridiculously lopsided punish games and the fact that trades are almost always favorable for Peach. My main way of getting kills is CCing dash attack into dtilt, which only works if I am really low percent and the Peach has been conditioned to spam dash attack (not hard because of its ludicrous risk/reward.)
My main questions are:
-How do I make my punish game more threatening against Peach? I'm okay at pillaring her until 30-40% and after that my punish game mostly consists of dairing her onto platforms and trying to read tech options, but I'm sure there are better ways to really put her in danger.
-What do I do against Peach in the sky? Seriously, she seems untouchable and up throwing/up tilting her is just completely unrewarding.
-What do I do to edgeguard Peach? I've edgeguarded one seriously once and it was because I practiced a couple wavelands and then realized she wasn't dead and yolo fullhop dair'd. Most times I try to spam lasers but they just float way to high above them and then drift mixup on the way back to the stage. Even if I do manage to hit her back off the parasol is a ****ing cornucopia of mixups. I don't even know how to start thinking about using Falco's tools to cover her options.
-What are some good kill setups against Peach? I've done a little bit of labbing and discovered jab -> shine bair, jab -> bair or nair and jab -> fsmash true combos at around 95, 110 and 140 % respectively, but I want to be killing around 80 or 90 or so and real followups don't seem to exist.
-How do I deal with Peaches that just put out hitboxes whenever I'm near and go for trades? Her moves don't seem laggy enough to whiff punish and her float allows her to just do it and drift away slightly, she just seems like a really safe character, I seriously have no idea what to do.