PS4 blinks a blue light and wont turn on


My ps4 is a year and half old, i was playing it and it went off then I turned it on then it went off did not want to on, some other day i tried to turn it on it could on come on the then later came on I played then it went off never came on

Every time i try to turn it on hoping it will come on it only blinks a blue light and the fan only spins a bit not even a full rotation, PLEASE HELP!! What could be the problem