Do you somehow lead the conversation in a certain way each time in order to better improve the odds of getting sex, based on where you are in the interaction?

I cold approached a girl in a bar last night and it was unusual in that for once I know she was somewhat attracted. She was asking me if i am single and was giving me lots of flirty eye contact during the convo. Even asked if I liked her and introduced me too her friends etc.

However, after I was aware that I had 'atrraction' I got 'in my head' and started trying to work out what sort of things I should now be talking about / saying, in order to help the interaction along and not go backwards.

I ended up going quiet for too long and losing some of my presence/spark because of this thinking about what to say, and then she left.

Gutted, lol

Not sure if I should have went into more 'comfort' conversation (''do you have any brothers or sisters?'') after her showing some interest? (attraction - comfort - seduction)

Or maybe that would have bored her and I should have started just telling her that I liked her and thought she was hot?

Or whether I just carry on self amusing and stuff?

Or maybe I should have sexualised the conversation somehow at that point?

Do you have any sort of 'structure' when it comes to what you say/where you are in the interaction?