I know I have to find the strength but how does one stay strong knowing that the possibility of her coming back from this is very low
I understand those feelings, I still struggle alot. You stay strong even knowing she may never come back because there is no other option to get through this. You have to accept time will heal the wound even if you cant see it now. It may take an incredible amount of time but the pain will pass. The only possibility to get her back is to stay strong and keep going, to trust that no matter what you will be OK. You might not feel it, I still don't all the time, but have to trust it.
I hate it also, but what else is there to do except let this consume and destroy us. Were in the shittiest of circumstances and its just how it is.
Accept what is, let go of what was, and have faith in what will be