Just had my first session. Pleasurable but not sure I felt the right sensations or not. Am I on the right track?

I bought a Helix Trident and used it for the first time tonight. It’s the first time I’ve ever done any sort of anal or prostate play. I just had the urge, and I’m glad I splurged a bit. But considering I’m new, I wanted to see if I’m on the right track. I tried my best to follow the tips I’ve seen online.

I started by taking a warm shower to try and relax a bit. Once I was all clean, I laid down in bed and did some breathing exercises. I then watched some porn for 15 minutes or so and stroked myself a bit to get extra turned on while still focusing on breathing and making sure I’m relaxed.

After 15 minutes or so, I lubed up the Aneros as well as my asshole. I gently rubbed my asshole and fingered it slightly before slowly inserting the toy. It was a brand new feeling for me but I tried to breathe and just focus on the sensation. Once it was in, my asshole began to contract involuntarily, maybe once every 10-15 seconds or so, like I was flexing my PC or sphincter muscles or whatever. It was a nice feeling, though I didn’t get the urge to pee right away like some people say.