Firstly, we appreciate you posting here, we know that can be hard to do during tough times. We are sorry to hear you are feeling frustrated and distressed- it can be hard when people we love do things or make connections without us feeling like we are "in the know." Please know that you aren't alone in experiencing situations with feelings of anxiety like this. You can read more on this thread here which you can copy and paste into your internet browser search bar: https://www.beyondblue.org.au/get-support/online-forums/anxiety and this thread has some great tidbits on how to manage anxiety and keep up your wellbeing; https://www.beyondblue.org.au/get-support/online-forums/staying-well.
Feel free to keep chatting in this thread you have created also, we are here to listen if you need to speak further.