Night, in this short poem, is the loneliest part of the day. The speaker lies in bed alone, and nothing around them offers comfort. The first line, "Numb feeling," sets the tone right away: it isn't loud pain but a flat, empty kind of hurt, as if emotion has been switched off.
From there the poem slides into something more frantic. "Going crazy again" suggests this has happened before, and the word "again" makes the distress feel like a pattern the speaker can't escape. Memories seem to be the cause. They don't just come to mind, they haunt, which makes the past feel like something that follows the speaker around and refuses to leave.
The final line is the most striking. "Trying my best to stay alive" is plain and blunt, and it makes the night feel like a real struggle rather than just a sad mood. The short, bare lines add to this, leaving the reader with a heavy, quiet, anxious feeling, and very little reassurance.