Donny,
I'll give you my take for what it's worth. In my opinion as well as what I teach, when you are new to this field as far as eq goes, "be a cutter not a booster".
That said, it depends on WHAT you actually record. It's almost like telling someone to automatically use a high pass at 150 Hz on down on a guitar track, yet the guitar track itself doesn't NEED to be high passed to that extent. So though I would definitely like to see you be a cutter instead of a booster, there are a few things to consider.
The most important thing that no one has mentioned so far, is what I like to call "sound identification". Meaning, you have to be able to hear a sound and know that it will be useful once you mix, or know that you may need to change a mic or a sound choice BEFORE you even record it.
If you cannot decipher that, an eq will only bring on frustration and excessive turd polishing. You simply don't record a sound that isn't right from the source. If you can't tell, sound identification is where you need to be before you even mess with an eq.
To be able to really understand what constitutes good and bad sound, the fastest way to achieving this is to be shown examples of sound in its best and worst forms. By conditioning and remembering, you know when something is useable and when it should be thrown away.
In understanding sound identification, you must have a good system to hear the right stuff. For example, I had a client approach me to record a video for them showing them examples of these sounds. Their monitor environment was not correct so they had problems hearing what I was trying to teach. I can't show good and bad uses of sub low bass if someone doesn't have a system that can handle sub low bass frequencies. This individual had a horrible time judging bass in his mixes. No wonder why he was jacking up loads of bass in everything...his monitors were not allowing him to hear bass at all in those registers.
So in order to learn about sound, you have to be hearing sound correctly. This is why good monitors, a tuned room or at least some sort of monitor EQ like ARC or something can make an incredible difference. You can't fix a thing if you can't hear the thing, understand?
Once you have a grasp on this stuff, all the eq uses and techniques will give you that "ah, now I get it!" moment. Until then, you very well could be squirtin' into the wind. Having the knowledge on what to do and when to do it will always over-power techniques or "how to's".
All this depends on what and how you track as well as what you hear from those instruments tracked being transferred properly or not. You don't high pass a bass guitar because someone told you that you should if YOUR particular bass guitar is lacking lows. See my point? Sure it's common practice for us to high pass a bass, kick drum, snare or vocal...but you have to determine whether or not YOUR actual instrument needs that and to what extent.
So most definitely watch and check out videos people share with you...but keep in mind that you HAVE to know what to listen for before any eq technique, trick or "common practice" can be applied. Best of luck.
-Danny