If you really must buy the latest black box of tricks, or the latest mix-maximising souped-up plugin, go ahead, but let me ask you this:
Can you clearly hear every single piece of instrumentation (including vocals of course) at any, and all, given moments during your track? No? Well then you get a C minus. Go to jail, do not pass Go, do not collect £200. And you’re not coming out until everything can be heard clearly. Now how useful is your new purchase?
Get your mix levels right. It’s all about the levels.
You evidently haven’t heard about @bozmillar 's next plug in.
The I do everything to make your mixes better, louder, more dynamic and more exciting than anything heard this side of Alpha Centuri.