Such Is Life - That's the way it goes. Get over it. Abbreviated as SIL

Get A Grip- Calm down and stop being such a drama queen will ya?!

Sure. Fine. Whatever - Used to get someone annoying to shut up. Abbreviated as SFW

Build a Bridge and Get Over it- Same as Get A Grip

Trust No One- A greeting used by paranoids/X-Philes/ Paranoid X-Philes

LSTYD- Abbreviation of "Life sucks, then you die." Used in place of Get A Grip  or SIL