The Mesilas Yesharim states based on the gemara in Berachos, that to the extent that one is fearful, that is how much he is a sinner. Meaning, if you want to know how far away you are from Hashem, look at how nervous you are. How scared are you?
A person who has bitachon in Hashem understands that Hashem is in complete control.
~ R’ Yisroel Majeski