Yes and no.
He get all of those, however the power is too much for a male body that can't use magic to bear.
So after a long coma, the 'power' ends up stabilizing as a magical world existing in magic dimension that Roland can access when he's asleep.
That world has its own history, but seem to be heavily influenced by Roland's memories of Earth.
And every single soul that has been absorbed are in this world, having 'new lives' in it, as well as some residents who seem to have inhabit the world throughout its 'history' (the main difference is that people got nom'd by Zero's battlefield all live in a single building Roland is also living in, and the others aren't)
Garcia isn't a Wimbledon or his sister, she's a martial artist with her own history of living in that world.
And of course since a man can't use magic, this world in fact has two 'creator's.
The other? Zero of course, now a little girl who has a new backstory because she's a resident, now a loli and is a lot more timid.