i'm using a motu828 and ableton live. when i record (and in order to not yell of course and max out the mic), I have the mic input gain a little less than 12 O'Clock if that makes sense, more like 11:45.

BUT, when I try to turn up the main or monitor volume on the motu so I can just increase my vocals in my headphones, all I'm really doing is turning up the mix of course. So, I can never really manipulate my vocals aside from the track/music. This is a problem because I feel like I'm yelling on the mic almost because I'm not hearing myself as much as I would like.
Do I need to get a different pre-amp or what? Hopefully this all makes sense, just wanted to run it by you all as you know what you're talking about. Thanks guys.