How - Letting Go

So my previous post helped me a lot more than I thought it would. It helped for me to verbalize what I was internalizing for weeks. It leads me to wonder what other things I have been hanging on to and how if I just said it outloud (or via the blogging hemisphere) perhaps I would feel freed.
I have long struggled with the casting your burdens down for God to carry. Perhaps it's because it's such a physical image, and obviously I can not physically take off the burden of money from my back and hand it over. I have struggled with it because I quite frankly didn't know how.
People often give you these flowery blurbs 'Let go and let God' etc, but does anyone actually sit down and tell you HOW. How do I let go? How do I cast all my cares upon Him?
Anyhow, all this to say somehow the physical transference of thoughts to a page helps me do just this. Lay it down, cast it away, let go. I need the physical to do the mental/heart transfer. I don't know if I'm alone in this, but I'm imagining not.
A few years ago I figured out I needed this physical transfer. I like lists, what can I say? So I started writing letters to God. It helped me so much to just say - here you go, I have written about it now I don't have to worry about it anymore. I still struggle with the 'letting go and letting God' but writing has become such a wonderful outlet for me. I know I don't write here as much as I should. But even typing out some lines on here makes me feel a little lighter. :)

Exodus 14:14 - this has become my mantra. It will be until I can completely let it take over my world. :)