Self made

As we have no self, we can be self made...
If we had a given self we could not change. As we have no given self we can change. When we have changed we can call this new situation self made - we made it ourselves.
The argument is something like this:
The personality we have now is decided by our body and mind. Mind is most important. It contains our experiences, our knowledge and our hopes for the future.
According to Buddhism there is nothing more. This is different from our spontaneous feeling and from most religions, which claim there is a self or soul which is the supervisor of all we do.
If our personality is nothing more than the effect of our present knowledge we might as well improve our knowledge and thus get a better self.
To change personality is not easy. It is not a superficial thing. But it can be done.