I don't understand physics

No.11438817 ViewReplyOriginalReport
what the fuck is a photon?
if energy can be quantified in discrete units how fucking much energy does an electron posses?
do photons posses discrete energy, if so how fucking much?
how does the electromagnetic field even make sense?
how come water transparence depends on the wavelength of the light going through it?
why the fuck do we even learn quantum mechanics?