You should really buff before you debuff
Also you could've avoided that overdrive if you used a single skill before attacking the 2nd turn maybe Perun's 'cause it's the weakest skill in your team and proceed to lower the raging bar further with normal hits

It's just an advice, I don't have a single Thunder SSR (neither Wind, those are my weakest attributes) and still none of my Himes get killed in Ragnarok.
Also Slashey's advice is correct