First, it is impossible to apply for the NCLEX exam, there is no application for it. You are applying for licensure as an RN and need to meet the requirements for the specific state before they will grant permission for you to sit for the exam.
If you have trained 100% in English, then you do not need to have the TOEFL done before you submit for the CES which is required by Illinois. But do be aware that the series of English exams are required for US immigration in order to get your Visa Screen Certificate.
There are more current threads available for information about the state that you wish to work in, suggest that you do a search for those.