I wouldn't worry too much about it, try some different toys and maybe those will help, explore your body and maybe that'll help too, I'm not sure what you've tried before, it may be a physical or a mental thing, or it may simply be a technique issue.
Dudes are pretty fascinated with female orgasms, I think it's because for men though the build up can be very fun, it's mainly about the release (as far as I've heard). For women it's very different, often the playing with no orgasm can be better than the orgasm itself. I do love orgasms, but they don't last enormously long, so in many ways I prefer the actual masturbation part. What men watching want to believe is that you're enjoying yourself as much as they are. For a man masturbation/sex without cumming is a failed attempt, some dudes don't even consider it sex if they don't cum. It's the same concept to men liking the idea of a girl squirting or creaming, in their eyes it is "cum" because they ejaculate, so if they see something visual on a woman it's like confirmation that they must be enjoying themselves. Even though female ejaculation/creaming has nothing to do with an orgasm (though it can happen with an orgasm).
Because of this, I'd just focus on enjoying yourself and having a good time! Dudes don't tend to really understand female anatomy (however much they think they do). They don't really understand what they're asking for, it's all visual. I don't think fake, faking isn't something that looks good, but almost every camgirl (and woman) exaggerates. Don't get me wrong dudes, I love sex and masturbation, but when I'm alone and have an orgasm I lie very still in a dark room and am completely silent... until the actual orgasm time, and even then it's barely noticeable sounds... I would do that on cam and be "real", but it just isn't good entertainment! Though men want to know what they're seeing is "real", they also generally aren't particularly interested in watching a girl look like she's practically asleep with a few hand movements. Same with sex, it's no fun fucking someone lying there doing nothing! I think definitely explore yourself and find out what you really enjoy, but don't get intimidated when you see girls moaning loudly, they're just communicating with the dudes to let them know they're having a good time, rather than it being totally spontaneous. Think of it like... If you're alone, you still have thoughts, but they're inside thoughts, when you're with another person, you say things out loud!
I've not heard many camgirls admit that they ever fake, but I think it happens a lot more than is admitted. I've done it before, I'm pretty honest with my regulars about it, members can't tell the difference, though I've never faked as such... more brought myself just to the point before an orgasm and left it there. I love masturbating alone and being on cam, so if I'm really horny I know I want to masturbate off cam with my own thoughts/porn, if I tease myself in that way, it'll make the orgasm that much better. I don't really ever need to do that though because I don't cam enough or do enough shows when I do cam. The point is though, no one notices the difference. Only other time is when someone's in a private and really tries directing me and is just being ridiculous about it rather than letting me enjoy it, when dudes are doing that I don't think they really care all that much about my genuine pleasure, they just want to see something that'll get them off. You can usually tell with guys the ones who genuinely care about seeing the real thing, and the guys who just want to see something hot.
I like what Kaylee said about never promising an orgasm, it means the dudes who really care about your enjoyment would be able to spend more time and effort in helping you get there. I don't think you'd miss out all that much on the dudes who just want to see a girl "cum" within a few minutes.
At the end of the day, camming is a job, be as real and as genuine as possible, but most members I know seem to be aware that though there are very genuine aspects, none of it is really "real". Just like a waitress might say "Happy to help you!" and laugh at a customers stupid jokes, when really she doesn't give a fuck about helping the customer and is just doing it as her job, she may enjoy her job and be happy to work and help customers, but if she weren't working she'd hardly be running around doing stuff for a total stranger. Camming's the same. You will spend large amounts of time biting your tongue, wishing you were somewhere else, wanting to hit members, all the while smiling and laughing. Most members are pretty aware of this, and if they aren't, then they need a big reality check. Most of the time I love my job, but sometimes I also hate it, part of being a decent camgirl is letting it show in the room as little as possible.
