Nottrustin, I think your therapist shows compassion and care for you by disclosing a lot of things to you. it also seems some of the things she told you are to reassure you that she will be there and things like that can help the relationship to stay strong. My therapist sometimes discloses things to me, funny stories about her child or something that happened when she teaches at the college etc. It helps me to trust in the relationship, in her and it makes it stronger.
I do however want to pick up on the first sentence in your post: Because of this board...
I think it is important for all of us to understand that this board is a mix of hundreds over hundreds of people from all different stories and backgrounds and everything on here - while very helpful and supporting at times - needs to be taken with a tiny grain of salt. Don't let what you read here influence you too much and rely on your own instincts. Take from here what you find helpful, and discard what you don't feel is helpful. If you had said "She disclosed a lot and it made me feel uncomfortable" then perhaps the boundary question would be more to the point and it would be a different discussion. But mostly I sense that you liked how much she shared with you about her own life and it seems what you took away from it was confidence and encouragement. So good for you and good for her!

Love, Amelia