welcome to cataclysmic shenanigans, a modpack that is difficult in earlygame but progressively gets less difficult if you know one mod, this description will give summaries on the most important to know mods

Apotheosis
this mod is incredibly useful if you know what your doing, with this mod you can silk touch spawners and modify them to your hearts content, but be careful, it also adds a lot of powerful mobs called bosses but if you beat them you will get incredible rewards like armor that gives more health, the thing i use the least but are sometimes even more important for your journey are gems they go in rank from cracked to perfect, each one of them giving you incredible advantages but be careful to read the description of each gem because that can be a massive drawback, that's most of the things you need to know about apotheosis

Create
unless you've been living under a rock and don't know what create is, it just turns minecraft into an optional factory building game with automation and sometimes my brain fries trying to understand it but it has a lot of useful info in game so I'm not really gonna summaries this

Alex's caves
this is in my opinion sometimes even more important than the main point of the modpack, it adds massive unique caves that you can explore like the toxic caves and primordial caves to name 2/5 of the caves
to find these you just need tablets that spawn in abandoned strutures like the new underground cabin and ect

and most importantly
Cataclysm
this is the mod that this pack centers around, it turns minecraft almost into a souls like game, with insanely difficult bosses like the netherite monstrosity and the leviathan (my 2 favorites) to get to these boss arenas you need these things called eyes... (stay with me here) they act as eyes of ender but for the arenas, some bosses require something to sacrifice like a nether star and such,
some are from the mod some aren't,

this has been my TED talk about the mods