I had a very rough flight back in the early 2000s and it bothered me for several years. There was a few years there that I didn't fly. The turbulence was so bad that I nearly hit my head on the roof the the aircraft (commuter plane).
I started sitting at the front of the plane and keeping my seat belt tight. Over time, I got used to the occasional turbulence and now it doesn't bother me.
Know that the severe turbulence that I am describing, and you are seeing on those videos, is probably a once-in-a-lifetime experience. Aircraft disabled from turbulence is also a very, very rare event.
Hope this helps.
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