How to root and flash twrp samsung s6 edge g925i android 6.0.1

Before I sry...I new member any wrong writing.
Plz help me I want to root my phone...
I many many try ready bt can't.....
my phone already brike ready.......
now my phone new flsh ready...
plz give right way....
Name: Galaxy S6 Edge
Model: SM-G925I
Country: Singapore
OS: Android Marshmallow
OS Version: 6.0.1
Baseband version : G925IDVU3EPC1