When creator’s block comes, it can be helpful to re-think what creating is.
J.R.R. Tolkien called all acts of creation, other than the initial one by God, ‘sub-creation’. Only the uncreated Creator brought something out of nothing. After that, all of our acts are utilizing things already in existence.
We are discovering, rethinking, using in new ways, re-arranging, combining, unbundling, and re-ordering bits of creation. Remembering this can take some of the cognitive burden off of creating.
Find some stuff that’s out there in the universe. Pick up little shards of reality and forge them into something new.