Just Wanna Brandish Royal Crossbow

I have tried and tried and I am not able to get to the stage where the QBD breathes extreme fire.
I have used over 50 freaking sharks, I'm not able to stay alive.

I just wanna brandish my Royal Crossbow, I don't care if I get a kill.

My stats:
85 att
82 def
88 str
86 hp
95 pray
76 mage
79 range
84 summ

I have tried doing melee and ranged.
Nothing seems to give me enough damage output and I die very easily.

Most of time spent seems to be mashing the eat shark button.

 

QBD shouldn't do that much damage to you, are you not using super antifires or something?

 

Are you using chaotics? Tbh I had trouble too my first time