Do you high pass-filter tracks in your mix to leave room for the kick/bass? Try doing the same with a low pass-filter to leave room for the vocals (and possibly snare drum, and ...). It will leave you with a more clear high and that can be shaped more easily in mastering.
“It ain’t what you got; it’s what you do with what you have, you understand? And it ain’t what you do, it’s how you do it” - Moodyman https://t.co/Hsz9K7mxLI