Earn your two-year transfer degree before you transfer. That way, your credits will transfer smoothly, as a package.
If you choose to transfer before earning a transfer degree, be sure to talk to the admissions people at the college you want to attend. They may evaluate your transcript course-by-course. They can help you match the courses you took to the requirements of the university. Hint: the fewer the credits your have when you apply to transfer, the more the university will look at your high school record.
Meet with your transfer advisor regularly. Colleges each have an advising center or transfer center for resources, workshops and events.
Connect with the four-year colleges or universities you plan to attend to make sure you have the latest requirements. All of them have orientation sessions for transfer students.
Follow the degree pan carefully. Pay attention to required course sequencing and cumulative grade point average requirements for the program you want.