need help getting to diamond (plat 2)

Mid/adc main, just need someone to duo with because when i go mid botlane ends up dying a lot and when I go bot midlane ends up dying a lot haha, my ign is DCart3r

Also: If a laner ends up going something like 4/13 and you are playing adc, what can you do (the enemy was syndra) to carry the game?