us living abroad

Are you currently studying at an English language university? If not you may need to take the TOEFL.

“Is studying for a masters degree expensive if I want to go back to the state where I used to live and apply for a community college since my purpose to stay in the state is to study.” This makes no sense at all.

You will pay out of state tuition unless you live in that state for 12 months prior to enrolling in a college. There are a few exceptions. What state are you talking about?