Schedule A and Schedule 1 are not the same.
Schedule 1 is for reporting additional income, not listed on page 1 of the 1040, adjustments to income. This includes things like business income, alimony received, capital gains, unemployment compensation, and deductions like student loan interest or health savings account contributions.
Schedule A is used specifically for itemizing deductions instead of taking the standard deduction. This includes expenses like mortgage interest, charitable donations, medical expenses, and state taxes paid.