This base period covers 12 months and is divided into four consecutive quarters of three months each. The wages you were paid approximately 5 to 18 months before the disability claim begins are included in the base period (they must have been subject to the State Disability Insurance [SDI] tax). Your base period does not include wages paid at the time your disability begins.
Law school is three years long. If you go to an average law school and don't get any tuition help or scholarships, you are going to spend ~$150,000 all-in, at least. That's three years of tuition, assorted fees, books and living expenses.
Apply to law school. It takes many years to work your way to a judgeship, so you may want to attend law school as soon as you graduate from college. Apply to top law schools in areas where you might want to eventually practice law. Ace the Law School Admission Test (LSAT). It's important to score as highly as possible.