Pick comparable songs
Choose tracks with a similar genre, energy and instrumentation. A sparse melodic trap song may be a more useful reference for your mix than a dense rock record.
Use more than one reference if possible. One song can have unusual production choices that are not appropriate for your own track.
Match loudness before comparing
A louder track often seems clearer or more exciting even when the tonal balance is not better. Lower the reference level so it is reasonably close to your mix.
Switch between tracks at matched levels and focus on one question at a time: bass weight, vocal placement, high-frequency detail or overall dynamics.
Translate rather than copy
Your arrangement, voice and artistic intention may require a different balance from the reference. Use it to identify differences, not to erase your own identity.
Check the mix on headphones, speakers and a modest playback system when available. Take notes and make small changes, then listen again after a short break.