Are you planning to pursue your bachelor's/undergraduate course in the U.S.? But not sure what should be the priority for completing the related activities like taking the necessary test, researching universities, etc.? Don't get confused and have a look at this video to learn more about the most important thing which a student should do, before doing anything else. The important thing which we are referring to is student visa or F-1 visa preparation. Because if everything is set and done and the student fails at this penultimate step then there could be nothing more heartbreaking than this.