This is great Adam! Take time out to get to the root cause of the frustration. There can be many fears hidden there, even from childhood.
I particularly have a block when it comes to my taxes. Most of my life I had a salary paid into my account and tax sorted for me. When I because self employed, I struggled with this side of things also which caused me stress.
I'm planning to meet with an accountant soon, but deep down, I want to learn how to do it myself :)
Thanks for your article on Simplifying Your Life!