How can i improve voice projection as a shallow breather? can't force voice from belly to project?

There are certain exercises that may help with this. Besides a speech pathologist; those who may offer the best guidance in this area may be a voice training coach, often sought out by people learning to sing. Though you've undoubtedly developed certain habits, as we all do during the course of our lives, habits can be changed or improved on. Like most changes, it will likely take practice.