This isn't the first time, nor will it be the last that top/mid soraka finds success. She's ranged and has a silence that can prevent fiora from gapclosing. She has sustain from Q, and has a slow with it. She can build AD or AP as she sees fit. And, probably most importantly, its uncommon. If that Fiora has never solo laned against a soraka she wouldn't know what to expect, and probably thought it would be like a soraka support. It is not.
Your top lane losing aside; if you want better teammates, you need to play better in normals to raise your MMR. Every queue has its own mmr, so playing well in ranked won't get you better allies in norm draft.
To that end:
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Stop focusing on your allies' mistakes, you cannot fix that, and more often than not pointing it out to them aggravates the issue. Identify your mistakes, and capitalize on your opponents' mistakes.
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Your average KDA is too low, mainly because you are dying too much.
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Your CS/m is really low. CS is the best source of gold. To start try to get your average CD/m at least about 6 - right now none of your recent games have about 6.
If you do that your MMR will improve over time and you'll have fewer bad allies.