Problem #1: I'm single, and I'm lonely.

This is especially common if you've recently been dumped. So you could either:

a) be "that girl" and wallow in your sorrow and watch lifetime movies, consume unreasonable amounts of chocolate, leave whiny messages on your ex's voicemail, sing a few heart-wrenching ballads from the eighties like "Total Eclipse of the Heart" or "Don't Cry Out Loud" (personal preference), cry in your bed, cry in the shower, cry in the car, and/or steer any topic of conversation on how much your life sucks and you hate your ex, 

b) or go hang out with friends and do something to distract yourself for just a few hours, maybe?