Use "already" to talk about something that happened more quickly than was expected:

He just bought it two weeks ago and it's already broken!

"Already" can go in a few different spots in a sentence. It can go before an adjective:

Don't tell me you're already tired.

Or it can go at the end:

I'm tired already.

It sounds a bit strange to put it before "are" or "am", although "already" can go before most verbs:

I already spent all of it.

You already took one, didn't you?