“Aren’t we running out of helium?”
No
The day we run out of Helium, we are in deep trouble.
Okay. I tried to find a reliable source, plenty of NPR scare articles out there...
It appears we aren’t but it is a finite resource and may become very expensive when there are shortages...
https://pubs.aip.org/physicstoday/Online/26992/Helium-shortage-has-ended-at-least-for-now
It’s less prevalent than, say, hydrogen, in the atmosphere, and the collection is expensive. But it has a substantial number of industrial uses including with space faring, so they are cooking up ways to produce more.