OK, I just realised that your microphone is a ribbon mic.... nice, but because of the figure of 8 polar pattern, you might want to take note of your mic placement to make better recordings rather than rely on software make-up tools like EQ.
You might need quite a bit of gain as the voltage generated on those things is quite low which will raise the noise floor of your recordings too unless you have really top notch clean mic preamps.
Putting both high and low pass filters on your records might well get rid of some of the noise but they will suck the life out of your voice too if not careful.
What I reckon you should do is line a corner in your room with a duvet to try and stop reflections, and make sure that the null if the figure of eight, the insensitive bits, point towards any noise in your room (power supplies/ computer fans etc), the sensitive rear side can face the duvet and other sensitive side can be what you sing in to.
Your mic can take pretty loud volumes so don't be afraid of getting pretty close unless it sounds crap. If you use a pop shield, have it around 4 -8 inches away from your mic surface. If you sing loudly and belt it at any parts of your song, angle your mouth away from the front face to stop any pops and excessive mouth noise getting picked up. The closer you can be to the mic the louder you will appear therefore the less preamp gain you will have to use which will in turn make the mic less sensitive to other stuff going on in the room.