It is never too late to tell your therapist you thought of additional items you need help with. It happens all the time.

I know I'm a great one for remembering things I want to talk about after I have seen my therapist. All I have to do is pull out of her parking lot before something comes to mind.

It is all just part of the healing process. As she knows you better the "plan" will change too.

Best of luck to you