Pallando, a few points of consideration
1. You're right at the finish line, but a bunch of your recent posts make me feel like you're almost psyching yourself out. Chill breh, you're doing fine, no need to constantly second guess yourself.
2. Even if chick 1 decides she wasn't interested after the first date, it's a success. You got yourself out there. People decide they're not compatible with each other for a wide number of both completely valid and completely random personal reasons. Getting rejected sucks, but the more it happens, the less you give a fuck, and sooner than later you will be the one handing out arbitrary curves