Week 1 Day 4 Question

Following the idea that “The goal of the homework is for you to show yourself how you’ve already created many, many things in your life, all of which started with an idea you believed in at some point.” In the context of this lesson, how would I handle these types of circumstances?
My mom died.
I have a heart defect.

I completely understand that I can choose my thoughts ABOUT these things, but I can’t find a way to link a thought that created these things.