Great idea, Karena.
Janeeyre, I'm so sorry to hear of what you are all going through. Makes one's own problems pale into insignificance. I would advise talking to your other family members as often as you can, especially as you are some distance away. It helps to be able to look forward to talking to someone and off-load, whether you've had a good or a bad day. At least it will feel like you have some mutual support and continuing connection. Being left on your own to deal with everything, even if it's just your feelings is very hard and isolating.
I am sure you value one another more since all this has happened, but don't forget either that you can still talk to those you have lost as well. It isn't silly, whether you believe in an afterllife or not. It can still help to talk to them and you will probably find you will be able to imagine what their responses would be.
Look out for feathers too. They may well leave you a sign that they are close and thinking of you. I didn't believe in feathers at first, but do now and it helps to know you are not alone. We are all here to talk to too, if it helps.
On a practical note, make sure you eat and drink properly. it's easy to forget to after suffering such traumas. Make sure your mum does too.
It may help to give yourself some kind of distraction each week too. I joined a class and took up a new interest and made some great new friends through that and they have really helped support me, so you may find that helps. If nothing else, it will take your mind off your troubles for a few hours a week.
Try to take it a day at a time. That's quite enough for now. Sending hugs...