Here is a video as an idea. https://www.youtube.com/watch?v=KC4kpofEZfo
I have a couple tutorials on how to epoxy countertops. :) I use stonecoat epoxy. It does not yellow or amber over time. :)
Here are a couple tutorials for you!
You might find this article helpful. https://letspaintfurniture.com/how-to-resurface-kitchen-countertops/