Hi Northman,
here just a few tips (this is a way too big topic to get it done with it, I know, but I hope it helps a bit)
1) Don't max the other tracks and "add" your guitars. Pull down the volume of all other tracks in relation to each other, so that you get about - 6 db Headroom on the masterbus.
2) Add your guitar(s), pan, eventually Low-Cut & HighCut to fit them in the mix, and then again take care to get your - 6 db Headroom again.
3) If your mix sounds "good" to your ears, put a loudness maximizer or a similar mastering plugin like a brickwall limiter to the masterbus
then it depends on - if you want to squeeze out the Sh*t of your material - your personal taste (it's all about taste) if you want to make it sound "death magnetic" (ouch) or make it sound "organic & dynamic")
4) Take care that your masterbus doesn't clip over 0 db, cause digital clipping is sh*t clipping ;-)
5) The "overall-loudness" has nothing to do with the quality of a mix.
6) A good trick IMHO is to keep the position of your single tracks and busses ALWAYS under the position of the master fader. So you can avoid distortion and clipping of the mix BEFORE you want to get it "loud"
I always tend to master my mixes toooo loud, cause I don't have real knowledge in "mastering"
Hope, there is something in my infos that helps you,
Cheers,
Andy from Red Bull Country
Unbenanntes Dokument (Rock-Funk-Metal made in Austria)