Whether you live in Illinois or another state, the naturalization process is the same because immigration is regulated by the federal government. You will go through an interview and take tests on English and civics.
You should answer all questions honestly on your N-400 form and during the interview. Applicants become ineligible for US citizenship if they lie. Come prepared to your interview to provide more details about the fields on the form in English. The interview is to both test your English speaking skills and eligibility for US citizenship. Avoid traveling abroad for more than six months before your immigration interview and test. This can affect your eligibility. If you filed an application based on marriage to a US citizen or resident, then you may also become ineligible after a divorce.
Practice your English
From the moment you greet the USCIS officer, the test on your English has begun. Thus, you should practice communicating with others in English until it feels comfortable and easy. Developing new skills comes down to repetition and consistency. Everyone can become good at a language this way. Don’t neglect your written English skills either. You’ll need to spend time practicing reading and writing too. If the officer asks you a question that you don’t understand, you can ask them to rephrase it.
Study US history and government
It’s advisable to study US history and government in English because the civics test will also be in English. The exception is if you qualify for a language accommodation. However, you will still need to pass the civics test regardless of which language it’s in.
Trust that you have prepared well for your interview and test, and do your best to stay as calm as possible. If you feel nervous, taking slow, deep breaths can help calm your nerves. Sleep early the day before your naturalization test to help yourself be in a good state of mind for this important day. Ninety percent of applicants pass their test, so there is a very good chance you will too, especially if you have prepared for it.