Loneliness,
Dont wait, and yes do start talking to everyone, anywhere, anytime. If you see someone you like just go up and start talking to them, some of them will look at you weird, but SFW.
Do personals, do chat rooms, go to bars, go to the grocery store. Just get out and meet.
If your shy, have a drink or valium, and then go and talk to the ladies. They dont call it liquid courage for nothing.
Good luck.
DJ_Q