Let's say I have 2 separate skills mods (that mod different skills/perks unrelated to each other) and all the unofficial Skyrim patches, and load order is as below: Skyrim Update DLCs Unofficial Skyrim Patches Unofficial DLC Patches Skill Mod 1 Skill Mod 2 What's to stop Skill Mod 2 from overwriting Skill Mod 1; and Skill Mod 1 from overwriting the skill fixes in the patches, which are supposed to overwrite the vanilla Skyrim bugged skills? The reason I ask this is because when I open up say, Stealth Skills Rebalanced by kryptonyr, it contains the whole skill tree for all 18 skills, with some Sneak skills changed, but Magic skills are not changed. But doesn't the mod contain information for all 18 skill trees? Why doesn't it overwrite Better Magic, which I placed before Stealth Skills Rebalanced in the load order? I'm asking this question because I'd like to make a mod that makes additional changes to some perks, but I'm only loading Skyrim.esm and Update.esm to make this mod. But I don't want this mod to accidentally overwrite the USLEEP fixes since it will be placed after USLEEP. I don't even know where to begin to look up this issue and I've been modding - and learning how to mod - for about a week in my spare time now. Most tutorials jump straight into animation and dungeon making, I can't seem to find tutorials for "simple modding" where they simply explain what Value means, or whatever. (This is just an example, I know Value = 1 means true, and Value = 0 means false; but some Values have 4, which makes me assume things but I'd rather clarify it than just assume.)