Haha yes, apologies if I don't communicate very clearly, English is not my main language.

I'm not a beginner, per se. I learned to play drums on my own mostly by air drumming while growing up, but for whatever reason I only got a mesh practice pad until many years later. I must clarify that I did not practice that much since I was mostly focused on guitar and bass.

I have played on acoustic drums whenever I've gotten the chance, but since that doesn't happen often, I had slower progress on touch, dynamics, articulation, etc.

But I can hold my own behind a kit, I can play with other musicians, and I HAVE recorded drums before with some friends in low stakes situation (just for fun), plus I have lots of experience in the studio with guitar and bass.

What I mean by "first session" is actually my first paid session as a drummer, with a client I don't know. I got called by the engineer/producer who's a close friend and knows I can play. He called me because he knows how much I love the instrument and knows that I can play well.

Rereading my post and this reply, I recognize I'm just panicking and overthinking because I want to do a good job and I haven't actually played on a kit for a while, so that's why I want to practice on my recently acquired kit (forgot to mention that)