I can't cope with life anymore . I don't know what to do about it... I am always mad always sad always crying.. can't deal with things at work... can concentrate. Now what

Therapy, close relationships that's my advice

Can give us a little more information..
What age are you?

Talk to your family/friends about it, maybe that could cheer you up?

Take time off work and get out there, relax, have fun for a while (or try).

Try out something new! Get a hobby that you'll enjoy to take your mind off things.