Thanks for all your recommendations! I tried jdm's advice and it is definitely working. It was a little awkward having it in a different position in my pants at first, but soon after, I got used to it. I have seen improvement in the desensitizing of the underside of my glans after a few weeks, but it could still use more desensitizing. Overall, my entire glans is getting less and less sensitive which I'm super happy about, and I am feeling more of the deep sensation in my glans now! Since I have been just pulling my foreskin back and leaving it that way, my inner foreskin is still somewhat sensitive. So there's the update on my progress.
Now here is just a random experience I had pertaining to my permanent retraction. A little background before I tell the story is that I am from the U.S. and the vast majority of men are circumcised here. I went to take a shower (the showers don't have curtains or anything, you're out in the open) in the locker room at the gym and, well, got in the shower (I was already skinned back via spoon method) and for the first time in my life, I did not get any funny looks or comments! To the bystander, they don't know what an uncircumcised penis looks like, and so since I had my glans exposed, I guess they didn't realize that there was a pocket of skin right behind the ridge of my glans. I am so happy that I am starting to see results and am looking forward to continuing this!