Okay then, following Jezebella's example (and with mostly the same sites...)
OKCupid I found to be the best overall experience, though it didn't really lead to anything for me. I think the nature of the site - with the focus on questions and fairly detailed essay-style profiles - lends itself well to getting to know people, and it was a fantastic confidence builder for me, which I get the impression is something that would be really helpful for you, ShyAndChatty.
From my conversations with people on there, I understand that the experience for women can be a bit overwhelming. Lots of guys seem to just send messages to pretty much every woman on there, usually just a single sentence, so I get the impression weeding out people worth talking to can be tricky.
I dated a couple of women from OKC briefly, and neither went terribly well, for various reasons. I also went on a number of first dates, most of which were good but just didn't have a spark to lead to a second. But I also made a number of good friends there, including one of my now-best friends. So, coupled with the massive confidence boost from talking to people whi found me attractive and interesting, it was an overall positive experience.
POF was the exact opposite. I found it difficult to use, difficult to get to know people, and very difficult to know what users were real as opposed to bots, or even to figure out from the cluttered interface which users had been online any time recently. It's much harder to use than OKC, and I very quickly got frustrated with it and abandoned it.
Tinder was a bit better. The focus on looks first with the swiping is both a blessing and curse - I'm a distinctly average looking guy, so I don't stand out and therefore don't get a lot of matches, but that weeds out the people who're only after looks, so it works out.
Again, I've made some friends there, and I also met one of my current sexual partners, so there's that. Again, for women I understand the experience is very different, because desperate men will swipe right for everyone and then try their luck with sexual messages if they match - but if you're discriminate with your right swipes, you'll probably be fine.
I also use FetLife, which isn't a dating site, but a kink-based social media site. If you have any particular kinks or fetishes you'd like to explore, it's a great way to get in touch with like-minded people and cut out that potentially very awkward "So... what are you into?" conversation. I've actually had more luck meeting women I like on there than on any of the dating sites... but that may say more about me than anything else.
So, ShyAndChatty, my recommendation for you would be to give OKCupid and/or Tinder a go, I think. They fulfil different niches, I think, and both could be useful for you as a confidence building exercise, if nothing else. I hope you give it a go, and that you have loads of luck and find someone lovely. You absolutely deserve it. <3