What you CAN say about light is that it behaves like a wave but that its energy exists in specific 'Quanta' of energy; you can't have less than the appropriate quantum of energy for a particular wavelength. This means that, for any interaction (i.e. being produced or being detected) the interaction involves a specific (tiny) amount of energy. So people say that individual Photons interact with atoms. This doesn't actually imply that the photons are particles - just discrete packets of energy. Many phenomena in Physics can give the 'impression' that photons are like 'little bullets' but this model brings in the question of how big they would be and many other phenomena are very hard to explain in terms of particles. I have never heard a convincing answer to this so I avoid thinking of Photons as particles - just little dollops of energy. It avoids a lot of confusion.
Most, if not all, phenomena can be 'explained' in just terms of waves in which the energy is quantised so don't feel bad about not 'getting' the particle idea.
