Just wait... i know it seems hard, and impossible, and hopeless, but really, you're only 19. You still have plenty of time left. It'll happen when it's meant to happen, and there's really nothing you can do. Just be yourself, and it'll probably come when you least expect it. But a lot of people don't get a girlfriend or boyfriend until they're much older, so don't lose heart. If you're feeling lonely, try surrounding yourself with family, friends, or pets... Maybe get involved in a sport or hobby that interests you. i'm sure things'll work out... Best of luck!