What are some things to know before getting into a culinary school in the US? (International student)

Select only a fully accredited culinary school.  The top schools require prior non-fast food working experience or the completion of a high school culinary program. When I enrolled at the CIA, the requirement was two years; now I believe that it's six months at an approved establishment. You will need at least two recommendations from industry professionals. At school, put your head down and work hard. Don't share your opinion with the chef-instructors unless it's requested. Take advantage of all freebies and extra programs. The CIA, for example, has the world's largest culinary library and study center. Join extracurricular groups to create contacts within the industry. Culinary school is expensive. Make full use of all the resources at hand. I think that it's much better to be a little older before starting culinary school. There tends to be a strong "party" contingent at culinary/hospitality schools. It helps to have some of that inclination out of the system before attending culinary school, because students can sometimes be categorized by faculty as serious culinarians or wasteful partiers. You want the chef instructors to respect you, but you have to earn it.

Don't do it. Get in a kitchen at a great property and work you're way up. At least know the pace and environment you're signing up for.  If you work hard and have the aptitude it will get noticed. I spent big money that basically gets you entry level. The degree won't mean much unless it includes experience in a high-volume kitchen. If you are already cooking then the degree will help you to the top.