Finally I took some shots, felt more courageous, had to clean my whole kitchen table, get a lamp set up to see any dust particles and I told my partner to keep hold of my cat and not disturb me for an hour.
I had my laptop setup with the installation video and it took me multiple attempts of cleaning with the alcohol cloth and making sure I was ready to go to the next step - but I did it. AND IT WAS PERFECT!
I know this is the best product for my phone and it was pricey and took a bit of effort, but I am damned proud of my ability to do it and glad that all the components were in the package for me to get ready to go. I am concerned however, as the person in the installation video said that I should have gotten two glass protectors and I only had one.
Other than this, I am a little curious to know how a second setup would go and I feel I may still need a shot or two to try doing it again. In saying this, I would definitely recommend it! But be prepared and be patient for sure.