Not Quite There (Pls help)

So I have had a helix trident for about a 1.5 years. I tried it maybe every 2 or 3 months until last month, where I started using it every week or two. Throughout all my sessions (with one exception) , the furthest I have gotten in pleasure is a mildly pleasant ( Does it count as p-waves) in my perineum when I am contracting my PC muscles (I think). That exception is my first session, where my lower abdomen also felt nice at the end of the session. I don’t feel I am making much progress, if any.

Anyone have any tips/ideas on what I could do to get better results? I think it might have to do with how I contract my muscles…maybe. I do a couple of things. I my focus on my pc muscle or outer anal sphincter (mostly pc muscle); I also will “poop” it (rectal muscle?) out a tiny bit, use my anal sphincter to suck it in , suck it in further with my pc muscle, contract my pc muscle a bit further–rinse and repeat. I think I have had the most consistent pleasure when contracting my pc muscles. Doing that, however, makes my dick hard and I’m not sure its supposed to happen from the contractions. Am I also contracting something else? How long should contractions be? Time and more practice should help, but I want to be sure I am not missing something. This whole process of pleasure is a bit abstract, yes?