Is it possible to enroll in college in the middle of a semester?

I am doing dual enrollment next year in 12th grade, which means I’ll finish my two year degree 3 semesters after everyone else finishes high school…im unsure whether or not I should get a job after a two year degree, or transfer to a 4 year college… Winter break isn’t that long, not enough to find s job, so what if I decide in the middle of a semester to go back to school?

No, you cannot. However you could look for colleges that do quarters so you wait less until the next courses start.
Or You can start school in spring semester.

Some community colleges (especially in Texas) offer classes on the 8-week system that do, in fact, allow you to enroll in college in the middle of the semester. So you could enroll starting in about October or March, depending on which semester you are in (Fall or Spring respectively).

Students who are dual enrolled don’t necessarily need to take the classes for an AA degree. Unless you don’t plan on graduating from a 4-year college (which most students ambitious and smart enough to be in De would plan), you should take classes that parrallel freshman year at the university you’re aiming for.

Typically, that means:
-English Composition 1&2

  • 3 classes from Humanities, Social Sciences, Art
  • 2 semesters of foreign language [note that numbers don’t match HS, so that if you had Spanish 1+2 in HS you’d take Spanish 2 in College, if you had 1+2+3 you’d take Spanish 3 in College… unless your college has a different placement system)]
  • 1-2 science: lab, computer science…
  • 1-2 maths (depending on your major: Statistics and perhaps Calculus, or Calc1&2…)
    Among the classes above you should have classes that allow you to explore what you want for a major.

Dual Enrollment allows you to have the best of both worlds TWICE:

  • curriculum-wise: you get to automatically get “most rigorous” for your curriculum but you also get a lot more free time and flexibility to pursue meaningful EC’s which are crucial for top college admissions [and those offer the best financial aid], such as research for one of your CC professors, work, write a book, practice your singing/running to national level, etc.
  • admissions-wise: you have all the benefits of applying as a freshman (ie., big scholarships!) but once admitted you get advanced standing (ie., you register earlier than regular freshmen, you can pick more electives, etc.)

1-question quiz about college:
http://www.nytimes.com/interactive/2016/06/03/upshot/up-college-unemployment-quiz.html?_r=0