You're right - the pain can't be taken away. You have to be strong and brave and keep going - and, honestly, I've been awestruck by your posts on here. He is still with you, in your girls - and that's why you have to keep putting one foot in front of the other.
And I'm aware that all this sounds trite and like a cliche, and what the hell would I know as I've never been in your position - but it's what we do...we keep going, no matter how hard it is. But of course you miss him - you must feel dreadfully alone - and the hard thing is no-one can really help you with that - I wish we could.