Season 3 Ranked Solo/Duo Discussion

I would like to preface this post with this: I think people that believe in elo hell are silly, and are probably just not too great at the game. This isn't an 'omg elo hell too stronk' post. Thank you.

So, with the Season 3 Ranked Update, along came tiers and divisions. I started this season in Silver 3. I played what was put in front of me, Anivia mid? I'll play Fizz! I know what his abilities do and I've played him once or twice, what could go wrong?

After a while, I realise that the best way to win solo queue games was to practice a champ, and play it alot, my champ of choice was Rumble. So, I began to gain lots of elo, or LP as it was. I quickly got to Silver 1 and then was promoted to Gold 5.

Since I've gotten to Gold 5 though, I've just done nothing but lose, lose, lose. And my theory is, the more I lose, the more I go down, the worse people I get, the harder I have to carry to get out.

Now, most people will jump here to: Hey! Maybe you're just not that good and you belong in Gold 5!

I wonder about this myself sometimes. I don't think it is that though, mostly because I don't want to admit I've reached my skill level, and also because I play a lot of ranked 5s, and my team is quite good. We play against plat/diamond teams regularly. This is massive for us as we range from Gold 5 to Gold 1. Anyway, I can do just fine against people of much higher tiers. I just outlane them, roam, make calls and win games. Of course it doesn't always go like this and these games are much harder, but my ability to play against Plat people regularly and still do well, makes me question whether I belong in Gold 5, or whether I can go higher.

It's starting to look bleak though, losing game after game, where I win lane and try to help out as best I can. I even used Sky's DST method - still no joy. It wasn't like I used to flame, but if say bot got a double, it'd be a, gj guys. Now I'm trying to be super supportive like, Wow! Sweet double guys! Playing so well! Still no joy.

How can I break this streak? Do I belong here?

Thanks