I have paid a lot of money to buy my HP omen 880-139nx and it is a beast. But two weeks in, it start to show some problems.

I shut my PC every night before I go to sleep. Lately it started not to shut down, when I press "Shut down" the lights stays on and the fans still working as if I didn't shut it down but it won't send signal to the display so every time I must press and hold the shut down button to turn it off completely. Does that harm the PC?

I think you guys call that PC locking when shutting down. I'm new to the PC world so please make my experience less terrifying that I'd loss the thousands of dollars I paid for the PC over some small errors.