Do not engage when you've got an inhib open and a superwave on your end of the map.
Sorry but I'm going to let you die, and don't go in if your swain is pinging that he has no Soul Shards and there are little to no wards out!! Thats just foolish!!! Elder dragon is not worth losing the game, and neither is baron.
Trying to carry in this elo is like being a Chemist trying to run a circus.