My family organized an immigration program (E3), which asked me to go to Guam to go to college first, and then take an examination of other universities myself. Is it okay?

In fact, you don't have to waste time at the University of Guam to see which state you want to go to. Conditions in each state are different. However, the general condition of a state is that it only needs to live in the local area for one or two years, and then go to college. Even if it is a local student instead of an international student, it will be much cheaper, and you can also apply for scholarships and grants. Take California as an example. You will be a local resident in one year. In this one to two years, you can work while working in an adult school, then go to college and transfer to college. Because the United States does not recognize domestic high school diplomas, you can only go to college first.