The most important aspects for medical school acceptance are academic performance in Math and Science courses. The community college system allows students to truly explore career field educational pathways to help ensure that students really know which track is right for them.
Helping people with skin problems does not automatically mean a person has to become a doctor. Estheticians and other skin care related fields offer an opportunity to help patients improve their skin without all the years of medical school.
I suggest doing your due diligence to research pathways. Palo Alto College has a cosmetology program which might be viable place for you to start. Private, for profit carrer schools also offer these types of programs. Either public or private, you would be required to take a state licensing exam prior to eligibility to practice.
I hope this helps.
All the best,