Lovely @peachgreen, pain is terrible, your pain I think the worst of all. Try not to fight it, breathe. Take Lyla out and get some fresh air. Distraction is often the only way to get any relief from it, and that's hard as what you are feeling is all consuming.
It's very early days still but try planning in one or two small things each day - maybe a walk out, or a trip to the play park. What will you have for lunch? This will give you small things to aim for, to work towards , even if they are mundane and small. It may help you inch forwards - something that I know you are struggling with.
You have an amazing talent for writing, so use that to document his life and your feelings. It's a good safety valve and channels the emotions.
Cry if you need, children are more resilient than your realise. Tell her that you are missing her daddy and that's why you are crying. She may also be trying to be brave for you.
Make sure you have a regular call at a specified time with people you love - like talking to your mum at 7pm every day for example.
And keep coming on here. Tell us more about Mike. I was lucky enough to engage with him on Twitter a few times and know how smashing he was. I liked him a lot (and I can't say the same for others on Twitter, that's for sure!).
You may feel alone, but know that you are not. The vipers are here for you and we've got you xxx