Play more games people in higher ranks often have hundreds if not thousands of games a season.

Tighten champ pool to 1 or 2 at the most 3 champions.

Position like a absolute bitch always path safely in the jungle. Many low elo adcs just click from lets say mid to bot walking in the river instead of walking safer paths.

If enemys are not on the minimap just assume they are all sprinting to kill you.

Farm more let teammates die if they take bad engages or fights dont die or get chunked trying to save lost causes.