So I'm an Astra main and I know how to place her wall down with ease (took me a while), I just don't know when to and where on defense? Also should I just use her wall to site take on offense. So far I place a wall where its a 1 v something...

Background: I come from around 3000h of CS:GO and played Valorant around the beta and shortly after the release. Then stopped and picked it up again a few weeks ago. I am currently in around Diamond 1 Rank. Last 5 games I focused heavily...