You haven't forgotten your Self. Forgetfulness and remembrance relate to things that can be learned through worldly experience.
But Self awareness is not anything that can be learned, remembered or forgotten; nor is it ever lacking.
Self awareness is the simple truth of what's effortlessly aware of everything that passes on the screen of consciousness.
When Self awareness seems to be lost, forgotten or confusing, it's only a temporary identification with passing things.
What's aware of apparent losing, forgetting, confusion, identification and all things that pass is only your Self. Nothing change that fact.
But it's up to you to stand up for your Self! Do not permit your Self to be counted as one who's capable of forgetting what's aware of your mind, and you will not be susceptible to suffering of any kind.
Thank you for the constant awareness and ecstasy that you be! I love you!