Samsung Galaxy s6 edge glass replacement help

[KD73]

I'm about to receive an s6 edge from my aunt and it has a cracked screen. Cracks all over and a piece missing. I looked on Amazon and found replacement glass for a decent price and great reviews. The problem is, it involves UV light and glue, and other tools im not familiar with. I've replaced a screen on my mom's tablet but it didn't involve all these things. I'd like some help or an article explaining how to do it.