Zero Start Problem for P2P marketplace

Hi! My app has been live for a few weeks and I have about 10 active users only. My app needs users to get the marketplace rolling since it is P2P. I am just a solo dev with no real marketing budget or anything so I have no idea how to actually start acquiring users..

My friends who use the app actually enjoy it and use it daily.

For reference this is my app:

UPL

Any tips or feedback is welcome!