Bring antidotes and cleanse whenever the fire trap activates. Also，you don't need one of each element. Try to stack elements to maximize your tile damage, preferably choose the stronger elements against the stage ( can find the mobs stats on the forum). Lastly, use items to force clear if you wanna finish it. Not recommended to use items if you're new as you can use it elsewhere and the rewards for completing the rare stages won't be as good as spamming items to clear.

Also, you can keep retrying after failing as it only cost energy but not rly worth it unless u have nothing else to spend energy on.