Can't install OS Mojave because computer will not restart
I am trying to install OS Mojave. I am currently running OS El Capitan. My computer has never shut down or restart without me doing a hard reset. I downloaded the OS, and it shuts all of the apps then it just gets stuck with all of the apps closed and the computer still on.
I have tried installing in safe mode, I have tried disk utility First Aid, and I have also tried hard restarting. Nothing seems to work, and I really want to update my computer
MacBook Pro 15", 10.11