i worked to improve my weak points. the more you improve, the easier games become. i went to watch your game that you are in right now as riven, but you were either dc or afk, so that didn't help.
in silver, you can pick a late game champ and just farm until you are strong, or you pick en early game champ and snowball. i like the first option just because it fits my play style, but i would even carry as support since that's my main for the longest time.
truly, you don't need to carry all of your games, I'm fairly sure you get some people on your teams that do ok and if you have trouble climbing, chances are, you belong at or close to your rank.
if i had more time, i would offer to watch you play ranked, but I'm actually going to be busy for a few days still. once I'm free, maybe then.