agnostic-faith wrote:
im a rapper and whenever I mix and master a track, when im done itll sound good in my headphones, crappy on my computers speakers, and only okay on car speakers.
There's one part of this that's easy to answer in principle though - and that's about monitoring. If you want to get consistent results, you need proper monitor speakers, and when you have them, you have to 'learn' them.
This process is relatively simple (to describe, anyway...). You find tracks, usually by other artistes, that sound good where you want them to, and you learn what these sound like on your monitoring setup. And you then try to reproduce this sound as accurately as you can with your own stuff when you mix it. After a while, you'll learn what you have to do to achieve the results you want. You can't do this with headphones - they don't reproduce anything like any loudspeakers do. Specifically, you can't possibly set up stereo panning with them - it comes out completely wrong, because they aren't positioned relative to your ears in anything like the same way that a pair of loudspeakers is.
Also, you'll find that you need to set your monitor speakers up sensibly within your room. That's a whole different subject, and unfortunately it's also rather important; your room will inevitably need some treatment to control early reflections from the walls, and probably bass traps too.
This is why all the decent recordings still tend to come from studios, where this is all taken care of. Doesn't mean that you can't do it, but you do have to be aware of what the real issues are, and compensate for them.