Looks fantastic Alexis,
I have an outdoor coffee table that the tempered glass just shattered last summer with nothing touching it. It scared me when it happened and I still don't know why. I was thinking of doing a similar repair but using ceramic tile for weather resistance. They sell tiles sometimes at 99cents each when on sale and I figured I only need about 8 12 x 12s to cover the top and I also have a wet tile saw to trim the tiles because it is not a rectangle it has some curves.
Don't fear your tools, pay attention and respect the tools and avoid injury.