Are you talking about Tax Year 2021?
The $10,200 exclusion was only applicable to Tax Year 2020. We don't know yet if they will come up with something similar for the current tax year 2021. State of Florida does not have any State Income Tax. You probably mean to say that Florida is withholding 10% for your Federal Taxes. Not enough info here to know whether you are fairly well covered. Depends what your total income is for the whole year? Depends if you're talking about 2020 or 2021? Depends what your withholding is on your other items of income? etc. etc.