Apple pencil pressure isn't detected

My iPad Air 3 doesn't detect the pressure of my Apple pencil. It's been a day and I've tried everything:

I've checked the tip of the pencil, tightened it and changed it with a new one;

I've rebooted the iPad, both by turning it off and on (waiting 1 hour before turning it on) and with forced restart;

I've tried with many apps, but it doesn't work in any of them: Procreate, Goodnotes, Callipeg or the iPad notes;

I've disconnected Bluetooth, unpaired it and paired it again;

I've charged it up to 100%;

I've checked everything in the iPad settings and there isn't anything wrong (I guess);

I haven't dropped the pencil or the iPad

I can't try with another apple pencil since I haven't another one.

The only thing I recently did was carring the iPad, and the pencil in its cover, in a bag, but I protected it well and didn't drop it. It worked fine until 3/4 days ago, then I tried to use it and suddently it wasn't working anymore.

I'm not even sure if it's a pencil problem or an iPad problem.

What can I do? I can't visit an Apple Store soon