@stillbloodyraining I feel the stress you are feeling. It's hellish. I didn't sleep for weeks before this happened but the separation was not my decision. I did feel a sense of relief after we told though and had got it out the way.
We did this in Nov and it's the worst thing I've ever done. It's horrible to put your child through this (mine is 9). The initial reaction was awful, lots of tears and anguish. It came completely out of the blue to her. Lots of the info i read is based on homes where there's been a terrible atmosphere and ours was not like that. I'd spoken to the class teacher so they were aware. My daughter took the next couple of days off school.
Be ready with answers: where will they live, what happens during holidays, will you still do family things together, will you still go on holiday together, what will happen to them if you die, where will they be most of the time, why have you made dad leave, do you not love dad, when did you decide exactly that you wanted to split up, why have you done this to me, why can't you live in the same house and sleep in separate rooms, can you afford to live in this house etc etc.
We had a 3 week gap before he moved out. We slept in separate rooms. She helped view flats. I don't think the reality of the situation has actually hit until now. I think that 3 week time period helped because we supported each other and it let us both answer the questions.
The parenting schedule is similar to your proposed routine. We drew up a parenting plan - we both did a version and then got together to compare and agree them.
It doesn't feel right when you don't have your child. So make sure you are busy, that's what's kept me semi-sane. It's very false but if it gets you through the next few months then so be it. Treat yourself, go to the cinema, meet friends. Reassure your child that they can call you any time, always pick up when they call.
I am not sure how long it takes to get used to this life. I wish I could tell you otherwise. Best wishes, I hope it goes ok for you all xxx