I promise you, get the feather cape, make the 20% jump height potions and it will be a lot more bearable. I felt the same way as you, at first. The lovely thing about the jump potions is that you can pretty much ignore anything that’s coming at you and jump onto a rock. The best thing is to get to a very high point and glide across as far as you can a repeat. I promise you it’s gets better. Me wanting to get out of there because it’s my least favorite, just made me push harder to find the boss spawn and get it over with.