I recently asked this same question of myself.
I looked around and began comparing myself with others at
the level that I would soon find myself.
I did not feel worthy.

The only thing I felt I could do was accept it and
just not screw up too bad.

So what I'm doing now is watching the very good monks,
the ones that I respect. Watching how they are at the monastery.

There is nothing wrong with feeling unworthy.
Just as long as you remember that the big dogs were once little dogs like us.
Follow their example mindfully and be yourself at all times.
Try to be worthy of your position and respect yourself and others.

Nothing too easy.

"Lights, Camel, Action!"
--Stump
A Fierce Pancake(1988) *Charleton Heston*(track 8)