Set up a account on this forum
http://forums.studentdoctor.net/forumdisplay.php?f=10 It's for premeds, med students, PhD
You will find all your answers on there.
But, for your question
No, transferring to CSU is not going to affect your chances.
The average applicant tends to have to stay competitive:
-GPA 3.7+ MCAT 30+ (35+, for more competitive schools)
-Volunteer work in clinic/hospital setting 100-150+ hrs Patient Contact)
-Shadowing 2-3 docs 60-80+ hrs (include primary care doc)
-Research 1 yr+ Also, there are many summer research programs that pay you.
-Volunteer/community service 50-100+ hrs (non-related to medicine) Ex: volunteer at children advocacy center)
-Anything that shows leadership roles
-Great personal statement
-Great letters of recommendation.
It takes 4 years of undergrad or 3 if you graduate early, 4 years of med school. After med school you have residency in which at this time your getting paid but you are practicing in the field you want such as dermatology for 5+ years or so i forget how long it is. Also, during med school you have electives/rotations and you will be able to try other specialties, so don't set you mind on one specialty and don't set your mind on one med school.
Pre-med requirements during undergrad are bio 1/2, general chem 1/2, organic chem 1/2, physics 1/2, English, Math and upper level science courses are recommended such as biochem etc.
Try to finish all the activities i listed before your junior year in college, because that is when you will apply to med schools, summer of your junior year, and that is when you will Take your MCAT also, the medical admissions test.
Go to that website i posted and make an account, you can find help on their, it is meant specifically for med students etc, and pre-meds.
Also, here are some summer research opportunities you an look at if interested in the near future.
https://www.aamc.org/members/great/61052/great_summerlinks.html
http://www.nsf.gov/crssprgm/reu/reu_search.cfm