Woah no fair, I always live in snow biomes...
Anyways I've made it to the snow dimension, there is a hole on the other end and when trying to come out of it some icepede-like thing followed me and is now waiting in the hole for me to go back in lol
You need some good weapons and armor, I'd say an infinite durability sword such as the bloodgem sword, and a sword made from the shards that the mobs in the snow/jungle/nether drop, or any other high-damage sword. And for armor, get some of the armor from the nether, I'm pretty sure it's netherite. and before you go to the nether, you should have full realmite (NOT elite because there is a bug where it gives you less protection), a realmite pick, and a decent sword, and probably a bow with good enchants or a DivineRPG bow. There are two ores in the nether, bloodgem and netherite. And if you haven't spawned the Ancient Entity or the Watcher, then you should so you can get to the first dimension. And if you ever decide to kill the ender dragon, then you will need a lot better armor because there are three mobs that are added, the ender watcher who has 40 health, the ender spider, who has 45 health, and the ender triplets, who are OP ender ghasts.