To further expound on my discussion of language difficulty for an English speaker, the US government has a list. The original list is gone from the government's website, but Wikibooks has preserved the list:
Language Learning Difficulty for English Speakers - Wikibooks, collection of open-content textbooks
Among the simplest languages to learn according to actual studies done by the government are Afrikaans, Dutch, and Spanish.
The
most difficult level contains, among others,
Japanese, Chinese, Cantonese, Arabic, and Korean. So congratulations on picking such a damn hard language, everyone!
