Beginner wondering what’s going on.

I recently bought the helix syn trident and the first 2 times using it, I really didn’t feel much after about 2 hours of use. Then this third time I used it, I started to feel a sort of buildup towards a tightness inside at about 1 hour of use and it felt good, but then it slowly started to fade. I did this about 4 times in 1 hour with the same results, although the last one did feel the best. I’m happy cause it’s progress and even if this is all I feel, I’m all for it! Just wanted to know where I’m at. Is this normal? What’s next? Thank you.