There's never an acceptance, Riven, never.
My story is that one of my twins, Ciaran was diagnosed in utero as having a condition which meant he was unlikely to survive much after birth, if he wasn't stillborn, he would need a kidney transplant within the first year, and he would be unlikely to survive to that.
The first few weeks after being told passed in an angry haze of denial, feelings of it not being fair, and the whole 'why me' thing.
Then i decided that i was using up valuable time that i could be cramming with memories instead. So i took myself to the beach when the sun shone, and bared my bump to the sun aas i'd read that unborn babies can feel outside tempretures, and then again when it was stormy so that he could hear the waves crashing into the rocks below.
I'll never stop loving him, he's my firstborn baby boy, but he had his life before he was born. In this life, i got to tell him how much he'd changed my life, how much i loved him as i bathed him in my tears. He died after an hour and 42 min, snuggled into his daddy's arms.
I guess what i'm trying to say Riven, is that although my case is totally different to yours, you have to do the best you an at the time.