Work / Easiest way for native English speaker to get a job in Poland? [35]

I am an American with teaching experience and an English degree, though no formal teaching degree. Presently, I am a journalist.
I am planning on moving to Poland for a while because my best friend is from Warsaw and lives there, and I decided it was time for me to experience life in Poland.

She says it would be no problem for me to go there and find a job. Is this really the case? or should I have a job secured before I leave?

Thanks.