Even at that speed it can take many years for light to travel across the vast distances of space.
Lets take the example of trying to accelerate an electron to the speed of light.
An electron is a tiny particle that forms part of an atom. It is very small and has very little mass. Surely if we can get anything up to the speed of light, we can do it with an electron. The thing about speeding up an electron is that it require us to put some effort into it, we need to do some work. The energy that we put in as work is transformed in kinetic energy, energy that is associated with the forward motion of the electron.