If I were you, I'd ask my mother, see how was she doing, and tell her about my life little bit and tell her something fun about my life. For example: I would tell her about silly things to make her happy. All I think is you should get catch up with things for your birth mother. Goes out with her, restaurant, fun place, or whatever place you and your birth mother want to go. So have fun with her, let's see what happen next. Perhaps your mother wants to know something about your life and you can tell her everything. So tell her that you got her letters and etc. I'm sure you and your mother will work it out, I know it. If she tries to tell you about what did she hurt you in the past. Just tell her, the past is end and the future will begins and tell her not to worry, just have fun between you and your mother. If you don't understand what I'm trying to tell you, I'll tell you very clearly, honey.