We trust someone because we love them. We do not try to trust someone so that we can love them. It would not be very loving or trusting to do it that way. Trust has to be risky by its very nature. There must be some sort of leap involved or there is not real trust. You do not trust someone because you study that person. You trust someone BECAUSE you love them. If you are only studying and looking for proof you are not actually trusting at all. I actually trust God BECAUSE I love him. If I only trusted of God what was proven, I would not have trusted at all. I do not trust SO THAT I will love God. My love for God drives me to trust him.
Sure, I wrestle and fight with that trust all the time. There are times in my life when that trust is tested, but I remember, then, how much I love my Father. When I remember how much I love my Father, I can remember if I really loved I would trust Him.
I may cry out to God in hurt, pain, and misunderstanding as long as I ultimately cry out, "Abba, I give you my spirit;" as long as I can say, "Thank you" even if through clenched teeth.