In ranked I get very few kills (11-15 kills/game) and I think it's because of my very defensive play style, I'm really good at defending a site but I am bad at attack. Which agent would be good for me?

I usually play smokes, but when I don't, I personally run into controllers who: \-Don't use mic \-Smoke right off the rip, only to have entry stalled by mollies and the smokes expire \-Omens who put down inaccurate smokes because th...