Originally Posted by
bsp
It's annoying and you probably don't want to, but figure out what you did wrong and be sure to not make that mistake next time. Once you have a big fish on, it helps to take a few breaths and make a plan about landing the monster. Figure out any obstacles that the fish can bust you off on, make sure your drag is set, and decide on how you will land it. Just stay calm, and don't let the shock/adrenaline take too much of a hold.
Hope you find this helpful. I've summarized everything I plan to remember when I hook another monster halibut. We'll both get ours next time!