You are referring to the classic DP/DR thing of feeling like you are observing your own life from the outside or a new perspective....Basically the detachment makes you feel like you are watching youself or life around you as if watching a movie or like you said playing a video game...
The best way to deal with this is to simply take part in everyday things like you normally would pre DP....You then become distracted or engaged and your mind becomes less aware of the "observing from the outside" sensation and as a result things feel more natural....
Sitting alone bored is the worst thing you can do for this....Because it allows your mind to start wandering....A hobby that engages and fascinates you constantly works wonders for this.....If you are doing stuff that constantly bores you or is a chore you are basically gonna "tune out"
And that " tunig out" is actually us disscociating........
I think all mental health sufferers need to find their passion in life after they improve and pursue it until they exit this world...
