Got shit on by an Aatrox main and want to convert

I’m a former ADC main who has converted to Top lane since I feel like I have way more agency in top. I usually play tanks and weakside but after getting abused so bad to the point of despair against an Aatrox main as weakside Ornn I want to learn him.

What must I know to join the ranks of Aatrox mains?