It is possible, but will require a little further setup.
At the moment, the form won’t know who submitted the form - there’s not identifier to say “this form submission was submitted by XYZ”. It’s likely you’ll need to do a little extra tracking within the form submission to identify users to their submission (for example, this could work as a starting point).
You can then use the APIs for the new Wix Forms to get the data you want and populate the repeater - Query Submissions By Namespace | Velo
Hope this helps with some ideas of the general direction 