Not knowing who you are in a dream — a different face, a wrong name — is read as a self in transition. Old roles are loosening before new ones settle.
Where in your waking life have you met something like this lately?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.