This will take time and maybe some therapy on the side, but it may help to build up experience in conversing with people in general - and then women - with no goal of finding a date. Where the only goal you have at that time is having a pleasant interaction. Or making a friend, if that’s not too intimidating of a goal. You want to build the basic skill set before you go for the harder skill of talking to someone you’re interested in
Try to start a meaningful conversation. Ask some interesting questions that encourage thinking and imagination. What would you do if you could fly? What’s the weirdest dream you’ve ever had? If you could turn into an animal, which one would you be? Or you can do what I do, and show random people your handful of caterpillars.
I think if you’re trying to show someone you’re interested, you might have a slightly different approach to the conversation, but the foundation of the conversational skills are the same across most kinds of people you would talk to. Being able to set someone at ease, being genuinely interested (even just for a brief connection), learning how small talk leads into bigger talk, etc, you want to learn to walk before you run.