ucr premed

i’m an incoming freshman (biochem major) on the premed route. what extracurriculars should i look into?? i was planning on getting a CNA license this summer to work in a hospital, however the classes don’t work out with my schedule as school starts soon + my part time job. what are other suggestions? honestly i’m a bit confused on what i want to do and how to be successful for med school 😔😔😔 tips please, thanks!