Need help beating Deadlift (True Vault Hunter Mode)

I am a level 26 Athena and I can’t seem to beat Deadlift (True Vault Hunter Mode).
If you would like to help my gamertag is RainbowPanda54

a idea you are a little under leveled have you done guardian hunter (vorago solitude) on normal if not do a bit of leveling up and do you have any keys left use them in Concordia on normal to get at level gear