It should be completely do-able, but there are a few ways to increase your chances of success for it. I assume you're on the build with two ice cream healing items.
Anyway, I'd recommend taking a Vim Vial elixir and also you can purchase Rejuvenation Resurgence from Shopia. both of those give you more healing. Also there are three total max energy gems in the current build and getting all of those will help too. I could upload a video of how I beat the boss if that would help, though I feel like that would suck the fun out of figuring it out.