Trusting in the Lord is one of the hardest things to do.
I believe I will never master it. I believe I will never fully be able to rely on the Lord while I am alive. It will get easier for me, but I believe post-fall humans cannot trust in Him naturally.
My prayer is that my trust in the Lord will become like a muscle. The more I use it, the easier it will be to accomplish. That it will still be sore at times, but that it would ultimately grow stronger.