Now what ? Well make it to diamond :p
it might look like a big goal, but to be honest there, it's not. It's always the same thing in every elo, the only thing that changes is the individual skill of every player. But even if all 10 players in the game are god beast of the mechanics of their champ, it will either be a stomp from one team or from the other, cause solo queue !
I played on a smurf account and started from silver to gold 1, and I literally see no difference in diamond 3, except the thing I said above.
So now what ? Just keep playing. The only thing that makes you better at the game is your experience you have at it.
Except for my friend. My friend has like 3k4 normal win and probably the same in ranked since season 1 and he's still bad :P
Edit : A thing that could definitely help you tho is just being smarter than the other players, building in function of what there is on the other team, and, probably the most important, picking your champion in function of YOUR team comp (sad life if you're first pick) and not in function of if you counter your opponent laner or not.
You can survive against your counter, but if you prefer to pick a champ that beat your laner but is just bad for the team, well, it's bad. Don't do that.
