To all ELO hell complainers (not necessarily OP):
If you're not rising in Elo it means you're at the right spot. This is why pro players consistently rise to high elo on new accounts.
The basic principle is this, the only reliable factor in every game is you. You have 4 randoms that can be anything from amazing to crap, enemy team has 5. Statistically your elo is all about you. If you win 50% of your games you're pretty much at your elo.
OT: Ward more roam more, pretty much the best advice. If other lanes are struggling help them as much as you can. Winning a game is not just you winning your lane. You need to carry that shit until you break your back.