Hi Wheatley
Welcome to the forum and the club no-one wanted to join!
Yes it is normal. No it isn't easy - esp to begin with. Yes it will get better.
It's kind-of akin to a bereavement, a sort of loss of the life we once had. And as such, it's not only normal but advisable to 'grieve'. Let it out. Have a rant. Shout Why ME? (to which you know very well there is no answer, but do it anyway) and weep as much as you need to. Whenever you need to. To that degree it's exactly the same as a breavement, at first you miss the person lots of times every waking hour. Then a couple of times a day. Then once every few days. Weeks. Months. Eventually rarely; although you still remember them, you aren't overcome with grief and racked with sobs each time you do.
However when I look back and consider it, I lost absolutely nowt really - except the ability to stuff myself with crap at the drop of a hat, but there again eating crap just makes you fat and sluggish and miserable -so really, that's a very positive advantage rather than a disadvantage!
And I've met some absolutely lovely people that I would never have met had it not been for my diabetes. (as well as other lovely folk that have no connection to it anyway)