Progressing through ranked as main support
I've tried ADC - but aside from Ezreal I really don't like the play style - and I suck at it hard core. I've tried mid with a bit more success, but my champion pool of champs I don't suck with are limited to ryze and oriana. I've tried JG with even more success. However again my champion pool for jg is limited and I normally only play it in normals. I've tried top - and I am not half bad at top - just don't expect me to carry. Then I tried support and immediately fell in love. Coming from World of Warcraft - it is the closest thing to a healer this game has, and that is what I loved doing in WoW. My support champion pool is 9 out of the 23 champs I own. I won't say I have mastered all of them but a good chunk of the supports I own I feel comfortable on any of them in ranked.
My problem lies in the fact that I just can't carry a team as support. I am stuck relying one of the ADC/JG/Top/Mid to not feed, and/or carry - and realistically this just doesn't happen in solo queue. All the advice I have looked at in these boards and on the old forums has suggested playing something I can carry with besides support. Is there any other way to do it, or am I just stuck for life in bronze if I plan on playing support?