Is a 2.0 GPA bad?
To be quite direct, a 2.0 grade point average is not good, but that does not necessarily mean that you will not get into a college that suits your needs and desires. As already mentioned, SAT/ACT scores are equally important, and they may demonstrate intelligence that is not reflected in your GPA. Naturally, many things can factor into a not-so-great GPA: personal issues, medical issues, family situations, or just a poor work ethic that a student is looking to rectify once he/she gets into college.
Nonetheless, your GPA and SAT/ACT scores are merely the quantitative aspects of your application. The qualitative aspects can be just as important. Some schools may want an army of 4.3 GPA, 1550 SAT automatons accounting for the composite of the campus; however, other schools, especially liberal arts colleges, look for what you can bring to the collegiate table that is unqiue, creative, different. Essays are the best place to shine when it comes to this. Also important is extra-curricular activity. Undergraduate study is not suppose to be merely for geniuses who wish to make scholarly pursuits their life-long occupation. If you have anxiety over your GPA, funnel that energy into areas that will improve the qualitative portion of your application.
Most importantly, have fun with the application, and make the most of your college experience, wherever you go.