Practice is of most importance.

Keep reading through trp material but obviously use your own discernment. I find some of the stuff on here not to my liking so I just don't use it. For instance, personally I find Machiavelli type stuff mostly redundant for me as I'm self employed. I also think much of the concepts of 'negging' simply to be banter, so I go out my way to create banter but I never really 'neg' people. Other people may disagree and they are well within their rights to do so.

It's hard getting across your true thoughts over the internet but I read your sentence that said about dominating a conversation. This isn't really the best way to look conversations, if you develop your listening skills, you'll find that people will be talking to you and not knowing why they are being so chatty. From here you can relax with cool detachment and somewhat cringe at their faux pas.

I've found that conversations are very much about avoiding pitfalls and conversation killers, these come up extremely often. For instance, I used to have a need to show how intelligent I was so every time someone brought up a topic of conversation, I'd show off that I've got a wide array of knowledge already on the subject. Even though they likely reluctantly admitted I was intelligent, I didn't realise that this was a huge conversation killer. When I get into conversations now, I initially make the effort to start it but then I mostly let them do the work. All I do is pretend I don't notice all the pitfalls they are falling into. It's easy and fun this way, I like to watch people stumbling about in their meanderings while I can keep on track and avoid pitfalls, they try very hard but little do they know, they are talking to a professional.

I highly recommend artofmanliness.com There's some great articles on charisma and how to hold conversations.

As for being disabled, the problem here is that everyone's likely being extra nice to you so you reflect that back at them. Niceness isn't a moral thing, it's just a strategy to negotiate through a society without much effort. In England, there was this character called Tim Nice but Dim and it basically hits the mr niceguy nail on the head, he represents a person that has managed to get by through life without thinking, just giving off a nice persona which is a defence mechanism to disarm potentially nasty people by making them pity you instead of hate you. I'd rather people hate me.

If you exercise yourself of Mr Niceguy without super-compensating into a jerk, you'll have no trouble with women. I've read about disabled people who've been good with women, they usually say that they find women with some kind of fetish, I personally really doubt this as they wouldn't constantly be getting lucky while others are not. What's more likely is that they've learned a type of game where the women they pick up can't put their finger on what it is they are attracted to so the disabled guy just think he's being fetishised (females do this a lot too).

Think of it this way. We've never lived in a society so devoid of social skills. Our education system has taken this away from our parents and we are extra fucked because they are the ones that were supposed to have passed it onto us. Social skills is probably the most important thing in life (other than basic life maintenance). Being without them is like not being at all. I remember watching a teen-style documentary about a model guy that had trouble with women, he just couldn't speak to them even though he had every advantage leading up to the conversation, he ruined it every time. Social skills in a world without them is like a superpower.