Sorry, but there's just no way any of those things could be taken as signs of schizophrenia. If you're hearing voices in your head while playing the game then that would be a sign of schizophrenia. If someone told me they were experiencing the things you listed the last thing on earth I would advise them to do is get checked for schizophrenia.

Depression, schizophrenia, OCD etc, these are all very serious conditions that shouldn't be taken lightly. It can cause a lot of undue anxiety when you take such innocuous things like frequently restarting your playthroughs of a video game as a sign of depression. There's really no need to take such harmless things as video game playstyles as indicators of mental illness. It's a big overreaction, like a doctor seeing a patient with grazed knees and immediately ordering a double leg amputation.