I had a problem understanding that teaching because I thought that if something physical existed as a singularity as astronomical its size nevertheless it was finite of limited size, it had some definite measurement( although impossible to measure) I also had a problem understanding the laws of the singularity and how and why it changed and exploded.
What huh? Can you re-do that sentence?
I also had a problem understanding the laws of the singularity and how and why it changed and exploded. I also had a problem understanding that the singularity existed before time. It is very disturbing not being able to understand it when I gave it thought
I cannot understand how anything physical can be infinite,
You've defined your problem at the outset when you wrote " I did not do much research"