~ Crossing the Line ~

I'm yearning for the sanity I once had
And searching for peace of mind.
I want to forget my past and
Build a future,
One without pain and unhappiness.
But the past has ruined me
And left me with only darkness.

I'm scared.
What if I cross the line,
The line between sanity and craziness?
Have I crossed it already
Or am I standing on it?
How do I stop myself from crossing it?
And if I have already....

How do I get back?