It’s like the experience was kept away from me

I’ve done DMT about five times now. On my second last one, it felt underwhelming, as in “nothing new here for you. Like I said, there’s nothing here but an amplification of what you already know. There’s nothing scary about it and they will know”. I came out of it, with this empty feeling of nothing new to learn. This feeling has been following me, where I’m not getting anymore mind blowing breakthroughs in my journey of exploring new concepts. It’s like I’ve hit a unification (there’s lots to explore still, but the vibe feels like “knowledge winter”), and it’s a dull feeling. I did a trip this past weekend, and I literally dont remember anything from it, which is very strange since I remember every detail usually. Who here has experienced the same? What followed?