HI G3...
The yesod is to learn to deal with lust.
It really doesn't make a difference (b'etzem) what exactly you are lusting for. If it is a 'normal' lust, or a shmutz sicko lust. Normal is in quotations for a reason.
The bottom line is the same. A feeling of out-of-control-ness.
GYE helps people learn to deal with it. and so yes, it applies to "normal" ones too.
The aleph is to realize that it is a very low thing to lust. Realize it any way you want. But you need to REALLY realize it.
Me, I happen to envision a couple of pigs in a pen, and someone throughs in food, enough for one of them. It really is not a pretty scene to watch them. For some reason

that 'talks' to me. But, its not important what resonates with you. As long as you come to a real hakara that this is not how I want to be.
The next step is dealing with it. It seems that different people use different strategies. One very good one is to give up fighting the urge, and focus on asking hashem sincerely to help you out. Follow Dov around to learn more about that.
Another very good one is to not be nispael. just keep trucking. Follow bardichev around for more info.
Or, feel free to come up with your own mehalech.
But one thing is clear. If you do step aleph for real, you will be willing to invest as much time as needed to get this thing right. And the resources are on the forum. (and in the attitude handbook).
best wishes,
k