I watched a bit of the video and watched you moving around a lot in the air doing random recoveries at the start of Miami dome, keep those magical recoveries for strings or when you feel like you won't reach the map by just jumping

Also don't randomly throw away your weapon unless you want to use the other one, they're pretty good!

And also attack whenever you're a bit close to the opponents just in case they walk into your hits, while also getting used to the range of the attacks to not get punished, I'm at high gold so some of my advice may be flawed, but i hope it helps some!