It takes a lot of practice to get good at mastering. Read a few tutorials and start trying to make space for your tracks.
If you want a good set of quality programs, I can recommend Image Line's Juice pack, $99 for the plugin essentials.
I can get you 10% off too if you decide to go for it, 10% off here
I haven't tried Blue Cat's FreqAnalysis (downloading now) but up till now I've been using Voxengo's SPAN, a free spectrum analyser, I love it's Band Pass filter option for seeing exactly what part is what that I'm seeing. Good Luck!