@HL2020 has given you great advice. If you are a CA resident, low income then the CA public schools can be generous with need-based financial aid. You could be eligible for Cal grants along with some Federal aid which could cover part to all of your college tuition and possibly housing. Each school has a net price calculator on their website to help you determine possible costs. Merit scholarships are few for the UC’s and Cal states and based on GPA and/or test scores. You will find more merit aid at Private universities.
You mention your anxiety and mental health. You should take care of yourself first so I would suggest you consider community college as a more gentle introduction to college vs a large university like the UC’s and Cal states. Medicine/Medical school is a long hard road so your mental health should be your #1 priority.
California has a great CC system which gives you many options to transfer into a choice UC or CSU.
UC’s offer TAG (Transfer Admission Guarantee) which guarantees admission at one of the participating UC’s if you meet course and GPA requirements.
https://admission.universityofcalifornia.edu/admission-requirements/transfer-requirements/transfer-admission-guarantee-tag.html
Cal states offer ADT which is a degree with a guarantee and many times a GPA bump for transfer. http://www.calstate.edu/transfer/ADT_mentor_applicant_next_steps/
The UC’s and Cal states also calculate your GPA differently than your HS. They use 10-11th grades from the a-g courses with extra points for UC approved Honors,AP/IB or DE courses. Calculator below:
https://rogerhub.com/gpa-calculator-uc/
A-G course list here: University of California A-G Course List
Once you complete Junior year, calculate your 3 UC GPA’s. Capped weighted UC GPA = Cal state capped weighted GPA.
ACT or SAT scores may or may not be considered but worth taking until final decisions are made.
Cal states do not consider EC’s with the exception of Cal poly SLO but the EC’s for the UC’s can make you stand out. Consistency and passion are important vs a laundry list of activities.
All you can do is your best at this point and come back this summer with updates so CC posters can help with a balanced college list that will be affordable.