Oh @Julianna, this is just shit, isn't it. I am sorry you are going through this. I am old (59) compared to you.
I can't imagine being your age and dealing with this. You are so brave and strong. It is great you have reached out here. This group are amazing and hopefully someone closer to your age will check in over the next few days .
It is very overwhelming at the start. Everything happens so fast and it is hard to process it all. Are you in contact with a counsellor? It might help you get through this as they could offer some strategies to help with all this. Maybe check with your oncologist or breast nurse.
I see you are in Brisbane and now in lockdown. I am from Brisbane and was first diagnosed during lockdown last year. I had surgery, chemo and radium and I am doing well now.
You will get through this, step by step. Be kind to yourself, eat good food, get a little exercise if you can and keep reaching out to get support from family, friends and all of us here. Big hugs 🌻