Lyrics from snippet

I don't know what's real, I'm living a lie
This pain that I feel is an allusion, delusion
No losing my mind, is that your lie or mine?
Am I wasting my time?

Let's go back to the start again
No wait, that's not where this all began
Let's go back to the start
Let's go back to the start
Let's- I don't know what's real