I have moved out of my house two years ago, my parents have been using my social security number to gain personal information on me and look up my college status and a bunch of other stuff that shouldn't have access to since I am 20 years old and they shouldn't be able to access my information like that without my consent correct? I need help figuring out a way for them to gain all this information.
The Social Security Administration does have a program to give qualifying persons new Social Security Numbers. However, the troubles you described in your post may not fit the program's requirements. However, the only place that can tell you for sure is the SSA.
You can find more information about the program at www.ssa.gov or stop by your local Social Security office or call the office on the phone.
The immediate practical step likely is to notify all the offices to not release your information without the person giving a secret password that you choose. Many offices will lock an account and allow access to it only when proper credentials are given.
Similarly, the major credit bureaux have programs that will freeze a person's credit file.
If you have definite proofs that your parents are the ones accessing your files without your permission or legal authorization, you likely can file a petition with the appropriate court for an order prohibiting your parents from continuing their unlawful actions.
If your parents are paying for your college expenses, they likely will cut off the funds.