How to eliminate echo?

Mac OSX El Capitain, Audacity 2.1.2, From .dmg

Ok great! I’ve downloaded the app and Sunflower and completed my first recording from a live stream.
I’ve played the recording back on my speakers.
How can I get rid of the echo, or re-record without the echo?

Cheers m’dears

Ensure that Audacity is not set for playback via Soundflower. (look in the device toolbar)
Audacity should be set to play through your normal audio device / sound card.