1 & 2. Yes, for the federal portion, you should be able to follow those steps to get the correct income and credit.
3. As for the state, you will need to correct any import issue. Yes, all blank or all state information should be filled in. Since the federal and CA do not tax IHSS when you live with the recipient, it can be blank for the state information.
4. Box 14 has an overtime selection where you can enter your Qualified OT. Since the income is not taxable, it would not qualify for the OT deduction so you can omit the entry completely. Box 14 is informational and not required.
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