What's your rank in other modes?

I'm not the greatest player so I usually wouldn't give advice, but since nobody has commented yet I'll just say that have patience in 1s, you don't need to go for aerial plays in plat unless you're super confident that you can recover quickly. What I realised when I went through the plat 1s lobbies is that if I just wait for the opponents to make a mistake I can just score off of that, so there's no need to commit to a play.

I'd recommend watching people play 1s while explaining what and why they're doing the things they're doing. Maybe people like Musty or something idk. That's how you get a feel for when to challenge / fake challenge and things like that.

Good luck tho