Recording With Headphones In

Please I’m using audacity 2.4.2 on windows 10 how do I record and listen to what I’m recording using headphones

I’ve split your post to a new topic as no-one is likely to see it tagged onto the end of a 5 year old thread.

What are you trying to record?
What equipment are you using?
How is it all connected together?

and listen to what I’m recording using headphones

At the same time?

Headphones usually can’t be plugged into the computer. You can plug them into anything else that supplies real time monitoring. The interface, sound mixer, or in some cases, the microphone.

Which microphone do you have?

Koz