How do I get schedule of the 30 years that are being used to determine my Social Security benefits
If you're referring to Social Security retirement benefits then it's actually your highest 35 years of wage-indexed earnings that are used to calculate your benefit rate. If you aren't yet receiving benefits you can generally access your earnings history online. For how to go about doing that, refer to the following Social Security webpage: https://www.ssa.gov/hlp/global/hlp-statement-7004.htm.
If you're already receiving benefits and/or you can't access your earnings history online, then you may be able to get a printout of your earnings history by contacting Social Security. You could also request a certified record of your yearly earnings by completing and submitting a form SSA-7050 (https://www.ssa.gov/forms/ssa-7050.pdf), but you must pay a fee for that service.