Playing too passive is deadly for an adc
I have seen so many adcs like this, they are super passive and scared to fight. They never trade in lane and turtle under tower, and in teamfights when they see someone run at them they immediately turn their tail and run.
This is not how it works adcs...
No matter how much farm you have, no matter how much item you got, no matter how much dmg you can do, when you cower and run all those stats you got are meaningless.
Please stop being a coward and actually fight while your team try to peel for you.