How to create a new currency?

Right now, currencies can only be issued by central governments. You can’t create your own Kirat coin and ask users to use it.

Even if I do issue a Kirat coin , no one would use it, and for good reasons -

1. I can print any number of Kirat coins, making myself richer
2. I become the central mint and verification athority for the coin.
3. No one would (or should) trust me