Do it and find out.
My advice is to stop worrying about where you're going to get and just enjoy the process.
Reality is: You don't know if you will succeed or not.
Accept that reality.
Atleast if you do it you will meet more beautiful women than you ever imagined. And you will become a confident person who chases what he wants.
Now tell me that's not good news!
But if you are reliant on results. I've been daygaming loosely since January this year, and have had two instadates recently and just setting up my first day 2 for tomorrow night.
Note: I just read your question again, and am now thinking... who knows whats possible!
Could you end up fucking a girl in london down an alleyway? ... Maybe!
Go and find some evidence which proves you can't.