What about... look at your loneliness in the face and say HELLO !!!! THERE YOU ARE ! NICE TO MEET YOU !!! ... To feel lonely you have to give a "bad" connotation to the fact that you are alone. Of course you can do everything people are suggesting , but... do you think running is the solution?( what do you think would happen when you finish that book, or the song ends, or you return home after a party?... taking these as a way to avoid the lonely feeling) ... If I were you, I would make friends with that thing you call "loneliness" and who knows... maybe we end up liking each other... ^^ (thumbs down are welcome ! )

pick up some hot panther chicks

Meditating you find a deep peace that takes away the loneliness.

exploring your potential interests and doing what you feel fulfilled.

reading,singing,partying,sporting,or sleeping whats your way?