No worries at all
Someone in the physics world once said something to the effect of
- Our best theory is the best of bad ideas.
I tend to favour that view. We know so little and yet our limited knowledge has produced results that you would burn for a few hundred years earlier.
According to quantum physics, nothing is indeed full of stuff. How this nothing-stuff interacts with well behaved stuff is still being heavily researched. Furthermore, on one hand, quantum physics appears to many to be nothing more than ideas in the minds of madmen and yet, these ideas produced the CD player which I know works.
The idea that a clock hand has more mass* when it's moving than when it's not moving seems ridiculous but that fact is key to nuclear power.
Physics can be torture for the human mind.
*mass-energy but that's not something one learn until way down the line.