Is this coming from a real drum kit you recorded, or samples?
If it's a real kit, I'd go back to the source (if you can) and record it closer to how you want it to sound. Choosing a very dark mic, maybe adding more pillows etc. Covering the front skin with a pillow inside the drum (not so that it's touching, just line of sight here) then mic behind that will cut out lots of high frequency content and make it more mellow. Mic inside kick, mic outside. Experiment.
If it's samples, choose a better sample!
Get as close as you can with the raw recording, then tweak as required. More often than not, you'll get a better result if you get the record/sample as close to the finish product that you want than if you use 5 layers of tweaked plugs to moult a sound into something it's not. Even if you think the result you have now is pretty good, wait till you see what you can get with a headstart recording! Sometimes just because something sounds good, doesn't mean it couldn't sound even better. If you have never heard better, you might not even know it exists and think what you have is perfect.
Aside from that, some good stuff already posted up there.