I can already tell that you get confused during team fights and don't follow up with your combos.
> Commit to your combos
> Focus in team fights
You were also top lane while your team was getting absolutely destroyed bot lane
They completely zoned your ADC and none of you guys did nothing about it, you literally let him die while you were trying to kill the support.
What elo are you..?
Also your support isn't the only one that should be buying wards, they are cheap and effective, start buying some.