Consider that you are moving the bass guitar in the wrong direction. Boost the lows and place it below the kick. Maybe at around 50hz for the bass.
Also consider scooping the low freq out of your guitars. Like below 500hz.
When there are not defined regions that each instrument sits in, a mix can get muddy.
Additionally after everything is gelling, don't be afraid to mix wide. Let the vocals, bass, and kick occupy the center. Let the guitars spread out.
It may help. I've learned to handle these things at the source nowadays so that i dont have to adjust much in mix, but depending on the recordings you may need to eq everything a lot. Don't be afraid to consider that things can sound like shit solo'd, but excellent in context with the mix.
I'm on my 6th version of the mix. I boosted the bass again to where it was too boomy and started to cut it incrementally to where it would render decently on regular speakers without distorting them. Each iteration gets me closer. Thanks!