I am the mother of two teenagers.
I think you need to come at this with some humor.
Blowing up at her will only make her feel more distant from you. I truly recommend backing off. I know how you feel. I have two dds. Dd20 is extremely private and not very chatty with me AT
I know it's hard to accept, especially if you've had a close relationship with DD up to now- but this really sounds more like she's just taking control of her own responsibilities as she matures. LUCKY YOU! Truly. I have a 16yo DD also, and a couple older girls on their own. Unless you have reason to believe your DD's "silence" is due to some horrible secret behavior, it might be time to start giving her some space. MOST do eventually come to us for more than "wants" if we don't push too hard.
I don't think it's that unusual for a girl that age not to want to talk too much about what is going on.
I'm not sure what a senior project is but does it require parent involvement? If not, I'd let it be and be thrilled she's thinking about it in advance (ds was always the type to put things off if he could). As for the rest, it's pretty normal, and time to start letting go a little - not easy; BTDT, but you need to turn some of your