Reach back out to her and tell her. She didn't pick up on the signs. See if you can find the courage to reach out and tell her. You are hurting. You are struggling. You do need extra support right now. See if you can push aside any thought of not being worth it, not wanting to bother her, thinking that she should have noticed and reached out to you, and reach back out to her.
Getting extra support right now will make a huge difference. It won't make the crap go away, but it will make life a little lighter, a little easier to bear. Just do it.