So basically, I know that I should try to place the back of my tongue against the roof of the mouth, and not only the tip of it.

However, when I engage the muscles for that, and actually feel hard pressure on the front of my neck from the strain, I can also clearly feel the entire tongue up against the roof of the mouth, but I cannot keep this position for more than three seconds. People here are talking about mewing for 10 hours. And that's really not going to happen it seems, not even close...

Because, what happens, is that I cannot breathe. It's not a slight obstruction where it's harder to breathe, it's such that one cannot breathe at all. It feels like there is a wall of cement that is impossible to conquer in any way.

I tried various things to make it work, and sometimes I do manage to breathe and I'm like "Yes, it worked!" but then I realize that I'm actually not touching the roof of the mouth anymore, that I accidentally let it slip down.

I am sorry if this is a noobie question, I'm really new to this, only seen Dr. Mew's videos a few days ago. It's just that I find this discouraging and I don't even know if what I am doing is right.