After several months, I finally managed to pump up the rear wheel of my bicycle (it's broken/clogged or whatever.).
When I tried to loosen the valve, a part of the valve came off abruptly and flew through the air with great pressure while my tire deflated immediately. I had to search for the part and had already given up hope of ever finding it again, but was able find and to reassemble it. This has happened before and I hate it.
In any case, driving with the inflated tire is a noticeable difference than before.