Start to work-out with weights. Buy yourself https://www.amazon.com/New-Encyclopedia-Modern-Bodybuilding-Updated/dp/0684857219
Start making BIG money! Forget about girls! Girls can sense desperation and they avoid this by all means necessary!
When you can bench press at least 225, deadlift 365, and squat 315 for reps (>6 reps) and are a multi-millionaire, girls will be all over you.
It's the sad reality of this world.
Good luck!