insert and update depending on if the user has submitted information before

Just a quick one. If the user has already submitted data to the dataset and is trying to update it, I want to populate all of the input fields according to the information they have already submitted.

I assume this gets added in the section that is querying if the user has submitted data before.

I am currently using this:

wixData.get("Properties",$w('#id').text)
        .then((result)=>{
                result.title=$w('#input2').value
                result.agentEmail=$w('#input3').value

The problem is that it is bringing up someone else’s information. I need it to display the information of the person that has already submitted information.