It's a different room to get away from the room 13

No.

In Doris Lessing's "The Room Nineteen," the antagonist can be seen as society's expectations and pressures that oppress and trap the protagonist, Susan Rawlings, leading her to a tragic end. It is the rigid social norms and expectations that ultimately drive Susan to seek solitude in Room Nineteen, where she seeks to find freedom from societal constraints.

room 19 is her sanctuary...her place no rules no wants no needs no pressures from society , family and self

The correct spelling of nineteen is as in the question: nineteen.