All your withdrawals are from IRA? Withdrawal from taxable accounts or cash are not income.
All or at least 60% of my income would come from Taxable investments such as cash, VTI/VTSAX or VBTLX. The rest may come from part time work. The part time work would be less than the income level to get ACA subsidy. So if (i didn't know this) investment income/withdrawal is not considered income then I may qualify for subsidy.