LF Mid Lane Coach

Specific things im looking for: -Zed mains -Ahri mains -Lissandra mains -Mid/Late game help -Positioning advice

I have about a year invested in league, so keep in mind im not pretending to be a God King. I am working hard to keep climbing before the end of the season, and I do extremely well last hitting and maintaining lane control early game. My play suffers in mid/late game though because I am unsure of roams or how to position in team fights. Currently B3, but my win rate is going up. (Over 60% with my three mains)

https://na.op.gg/summoner/userName=Xozi -68% win rate over 20 games -48% kill participation -2.28 KDA