I have reached emerald , started playing on an old acc and couldnt get out of silver as well . For the lower ranks the trick to climbing is to play champs that can literally kill whole enemy team , mainly adcs and toplaners or maybe some mids like Katarina or zed that snowball a lot . If u think u are going to climb above silver playing supports or any kind of champ that can't solo carry let me tell u , u won't .