Rumble rant lol

I'm currently taking on the challenge to hit GC in as many games as I can because why not. I'm usually gc1-gc2 in 2s and 3s. Currently stuck at around champ 2 on rumble and man it's rough. Just wondering if anyone has any advice because rotations and any game sense seems to be non existent and it's starting to take a toll 🤣🤣. Thanks and have a good day.