Congratulations!
I remember my first time trying a diaper wasn't the greatest experience ever, I had to try store-bought Depends and they just didn't fit the feel or the aesthetic that I had in mind after dreaming about being a baby again for years. Also, while semi comfy, you'll find that they aren't the most functional diapers either, my Depends always leaked. So, for my first time around, the anticipation and the build up was great, the actual wearing was a bit of a let down. Fortunately, I enjoyed it enough to never even think of stopping and the more I wore and tried better brands the more I enjoyed myself.
Also, as ThePhotographer says, the experience gets way better when you start wearing the actual ABDL brands like ABU, Bambino and Tykables. If you think your first time with a Walgreen's brand was great, just wait until you try out an ABU diaper, that'll blow your mind