Does your autism affect your social skills do you think? I know aspergers can affect interpreting facial expressions and things like sarcasm etc. but do you feel at little socially detached in conversations?

The prostitutes don't spend any time with you and no one can go purely on the physical. Plus, like Hverts said, they want the business so will tell you what you want to hear, just like shop assistance tell you you look nice in clothes you try on in their shop etc. I wouldn't tell any potential female that you sleep with prostitutes either !! If they ask then you can't lie but don't volunteer that information. I would say it would put most women off.

Friends and family will also often be kind to spare your feelings so if you are going to ask their opinion, go to the closest, most critical and brutally honest person you know and ask them to critique what's wrong with you and why this keeps happening? Maybe chose a female and a male to ask, to get both gender perspectives, and tell them not to hold back. You might not like the answer but at least you will know if your the problem and that *gives you a base to work from to improve those things (*maybe say something like that when asking them to tell you what they think)

I didn't look at these so they might be rubbish but they are just an example of the stuff you can find on-line (and I bet you tube have vids)

How to Flirt With a Girl the Alpha Way: 13 Steps

Flirting 101 by SIBG.com