Ok I have noticed that the mod packer of ck is linked to the workshop and is totally useless because it forgets pieces of the mod and other stuff ... So how to correctly track all the "needed" files that need to be packed and sent? I am so not asking how to pack because there is a good tool for that made by modders , but how to track all the needed files for the correct working of the mod .... Like scripts , needed lods or whatever else...

I haven't used the Create Archive option, but it's right above the Steam Workshop option....I always assumed that's what it was for.

Other than that, the only solution is manually. Personally I keep diligent backups of any mods I am working on in a separate folder. In this folder I create another folder which is basically the mod as it would go into the Skyrim folder (data > meshes, textures, > mymod > etc), every time I add a new file or script I copy it over to this location. When I've finished making the mod I simply zip up those folders and I don't need anything from my Skyrim folder except the esp.