Go ahead, sing your heart out from all the pain and miseries.
Go ahead, cry out loud to take away the sadness.
Go ahead and shout all the madness you have.
Go ahead and live now. That's how life really works.
It is may be clichè but somewhat is true that life is not a series of happiness, actually, most of the time it is a series of sadness, madness, pain and heartaches. But after those, smile and be happy and proud that you overcome all of it. :)