Try not to worry too much about "losing" your identity. While you may shed layers of your former self, you are creating a new existence. Adapting to your new life can be lonely in the early months, but know that nothing is forever. Your old self might rest dormant for a while, but it will burst into new life, as you become a more evolved version of yourself.
When you elevate women to a pedestal, you put them in a place where they can't fall. Because this elevated position means that with all the glory comes all the blame. Because this sets up the dichotomy where mothers are highly valued until they make a mistake. Then, they are the problem with everything.