Was the $23,000 you received a merit award based on your grades and such?
This was an early action acceptance. Your full financial aid package might not get to you until April…if you are even eligible for additional aid from this school.
You need to go to the school website, and type “international student financial aid” into the search function. You should get taken to the section of their website that talks about international student aid.
You need to find that info before you do anything else.
ETA…the school might not meet full financial need for all students. Most colleges do not make this guarantee for all students…and even less make it a guarantee for international students.