I don't know if im just not doing something correctly,, but I can't seem to get eggnog? When I follow steps I've seen it gives me advocaat. Is this supposed to happen? Am I doing something wrong? if someone can please tell me that would be great
is it harder to make or something?

Check your config file, if you are doing everything 100% right then you will get the highest quality product and it may have a different name like with the "Example brew" the name changes depending on how closely you followed the recipe. Maybe eggnog's "good" quality name is Advocaat in your config.

From the comments at the top of the recipe section on the github's config.yml:
name: Different names for bad/normal/good
difficulty: 1-10 accuracy needed to get good quality (1 = unaccurate/easy, 10 = very precise/hard)