"super low" is just as bad.
you have a limited bit depth, make the most of it
record in 24 bit and super low becomes super high anyway
Just to add my 2p. Assuming you're happy with the actual mix, you probably need to do some basic mastering. I'd suggest you start with some EQ to get rid of any harshness. Or even better, a multiband comp. Then go into a limiter (or even better, just use a multiband limiter)
e.g. Waves C4 into L1
or L3 Multimaximizer)
or iZotope Ozone - dial in one of the presets till it sounds good - tweak as necessary.
I would also suggest TT Dynamic Range Meter to keep an eye on the dynamic range and X-ISM to make sure you don't have any intersample clips (although Ozone is supposed to warn of this)
Make sure you experiement lots and listen to reference material often