Struggling to carry silver
So I recently have started playing rengar, I played him jungle for awhile but then realized the strength of him top. I have been playing him top a TON in ranked and have a very bad win rate like 30%. I win lane almost every single game, get very fed, spread the lead to other lanes and do just about everything I possibly can. We still end up losing the game however. I just don't know what else I can do that this point. I feel like either Rengar can't carry solo queue which I highly doubt or i'm not doing everything I can in my power to win my ranked games. Any advice helps, thanks!
Edit- Forgot to mention, I was placed in Bronze 3 at the start of the season and have managed to make it to silver. I didn't have any problem getting out of bronze like many but it is now a problem in silver 2/3