Kouki_s13

So my s13 wont start I changed the started and tested it and it passed I even bought a new battery cause it was bad thinking that would be the problem and it wasn't the battery. I have no idea what it could be. I even kicked started the car to triple check if it was catching with the fly wheel and it wasn't the problem because when I turned it off to turn on again all I would here was a click coming from the engine bay and the fuel prime. Can anyone please help me. I have no clue and it's my daily. Any info would be helpful. Thanks guys!!!