well quantum physics appears to be complicated because it manifests on a scale that we can't directly relate to or observe with our naked eyes (i.e the world of the very small).
another example that appears to be complicated and incomprehensible at the first glance is the world of the very fast , such as particles traveling at the near speed of light inside the hydron collider or even light itself (among other things).
the (quantom) theory itself can be summarized in a very simple statement , that everything exists in finite quantities or quantas (hence the name quantum physics) for instance the smallest electrical charge is the charge of the electron (because obviously electrons are what electricity is made of) therefore any electric charge has to be equal to the electric charge of an electron or a multitude of it , in other words it's impossible to have an electric charge that is 1 and 1/2 of the quanta of the electric charge (i.e electron's charge)
once you understand this very simplistic principle it will become quite surprisingly rather intuitive to think of the world like that.
that said everything in the universe is understood to manifest in finite quantas , not only electricity but also mass , space and even time!
basically every single physical attribute of the universe must have a certain baseline quanta which is the cornerstone of that feature and whose variation must be the multitude of it.
let's examine time for instance , according to many mathematical models that have been formalized since the 20's of the last century and which have been verified by empirical evidence , time appears to be flowing NOT as an infinite stream of events which newton propsed but rather in a strictly defined time constants known as time quantas.
a time quanta (just like the electrical charge of the electron) is the SMALLEST time unit of the universe!
any event that you can think of has to start and finish within a discrete and finite number of time quantas , no fractions are allowed ! (because the universe says so....LOL)
the best analogy is that of a CPU , as you all know cpu's fetch and execute instructions within what's called a time step and so does the universe , however because this time quanta is so damn small we humans don't really notice it , however an electron that is changing energy levels WILL definitely take notice of it (which is why the quantum world acts so bizarre).
and the same applies to space , which is divided into little space quantas that means continues-looking space is actually fragmented into little space boxes , and each and every particle has to sit inside of one those boxes at any given time quanta.
now you gotta put all those quantas together and did i mention that time and space are related?
one last thing to note but quantum physics , is that there is a literal war going on between quantum physics and the general theory of relativity , so far scientists have struggled to combine the 2 into a theory of everything that explains well everything , a candidate of that is what's called string theory and its derivative M Theory which is EVEN more bizarre than quantum physics but i'm not gonna bother with that (frankly i don't have a clue what M Theory really is... LOL)
but suffice to say , is that quantum theory in general ignores gravity while einstein's theory is gravity-centered , the reason why quantum theory gets away with this neglect toward gravity is because gravity is extremely weak in comparison to the other 3 fundamental forces (electro force , strong force , weak force , the forth being gravity). it only shows its power on macroscopic scale and that is the final reason why the quantum world is so strange (i.e because it's a world with very little gravity influence unlike ours)
i hope that clarifies something , btw i'm not a physicist so i don't give any warranties for what i've just said.
P.S if an eletrcon had a consciousness and managed to explore our macroscopic it's mind would most likely be at sea given the apparent "irregularity" of our world , just because something appears irregular or counter-intuitive doesn't mean it's false.