Read your post and just wanted to say I'm so sorry.
Op I lost my young adult son suddenly 2 years ago and as horrible as it seems I didn't have the strength to think of my 2 children and how they were feeling as honestly all my energy was being used up on taking my next breath.
Those who have lost children may be able to relate to the feeling of utter chaos, panic, despair ..infact there isn't a word yet invented to get close to the feeling
.... however now 2 years later only now can I comprehend my children's feelings. You have not only lost your brother but your mother too (for now) ... take it from a bereaved mum you are doing an incredible job and eventually things will return but to a new normality. You will each have your unique roles and may find that the roles will be reversed many times and maybe that in a month or two down the line your mum is the strong one and you the one who needs the constant support
I'm sending warm thoughts to yourself and the family for your journey. My biggest piece of advice to you is 'to be kind to yourself ' take one breathe, one minute, one step, one day at a time.
Not too long in the future you'll find the ability to share the burden. It's such early days and from experience your still hoping that it's a mistake and it's all been a dream
I know my children were in your shoes - everybody had their role.
Talk talk and talk more. Don't worry about being the strong one but I can relate to that too... just be you and do what feels right
Sorry if my post doesn't make sense but I just want to say that siblings can be overlooked at this stage but this is the shock/numbness and re evaluation period
Don't be scared to make appt with someone. Your feelings will change daily. There is no right or wrong and I do appreciate that because of your loss and you carrying the burden at times it may feel like the whole family has been lost. This again was normal whilst we each made sense (or tried to) of our roles to play and of the huge huge gap that was left
Be kind to yourself and I really am sending positive thoughts.💐