Traditionally, mixing with headphones is generally frowned on for various reasons including hearing damage, spacial issues, and distortion (depending what type of headphone you use)

Fortunately, headphones have come a long way and there are some great techniques/headphones available on the market now.

Sound On Sound has written a fantastic article on this very subject. Seen here: https://www.soundonsound.com/techniques/mixing-headphones


Cheers,
Joe