Who Must I Be?

You want me to "be better".
"Be good enough".
"Be better than everyone else."

But how can I do that? 
With the weight on my shoulders,
Dragging me into the darker side of my mind,
Where I could never come back.

At night I can't sleep,
My discouraging thoughts,
being a pest to my mental health.

During the day, I'm awake,
But the happiness is slowly fading,
into nothing but memories.

​Leaving a mark on Earth,
That's what will uplift my worth,
They say.

Is being who you want me to be,
A bit much?