@audreyc915 I do not know why you pursued Chemical Engineering 4 years ago, it is not for people who struggle with Math, Physics, and Chem - Sciences. I hope it was not because that job can get good earning, or because people encouraged you to do it without testing your talent.
You may need to do some Career Test to find out what future job you will have the talent to do it. Perhaps Science is not for you, but you will do well in Psychology, Childcare, just for example. I believe that everybody can go to higher education; they just need to find out what their talent is to pursue the right major.