Some dudes need 2000 approaches, others need 500 for the same level of game improvement. How to learn the most out of every rejection? How to efficiently use failures to up your game?

I'm moving to Paris in a few weeks. My goal during this 6-month stay is to improve my game as much as it is theoretically possible. For that, I want every approach to count.

P.S. Tips on "gaming" guys - i.e. meeting and hanging with fun, high SMV dudes, are welcome.