How to get out of silver?

I was in your position and i managed to get to gold division. At first counterpicks! Most of the time you dont have to put much effort on your lane especialy top and mid. Second know which champ "fits" with you in order to play well. Third learn to buy items that stick with your situation you got in every match. Fourth warm ups, play some drafts before playing ranks. And last friends, you need a friend who can play well to help you rank up.