Of course not, you're absolutely fine!
It's hard to answer questions without digging into specifics! I don't feel I've really found my feet yet - the split was only a few months ago, so of course we haven't yet quite settled into routines really.
In a sense, it was less disruptive than some splits, because the house we lived in was in my name (because back when we were in a position to buy, it turned out my ex-P had lied about debts and wasn't eligible for a mortgage anyway). It also turned out that my ex, who'd been asking me to bankroll everything, had been saving up - and the positive side of that was that she was able to get a mortgage herself, and she very quickly moved. We only live a dozen or so miles apart.
I was hugely lucky because I have a lovely support system through friends. My family were less good - in fact, I'd wanted to split up years before, and they were adamant this would damage our DD and so we shouldn't do it.
DD has been a trouper. She's been ok with the split, but has found it hard that ex-P has a new girlfriend within a few months of us splitting up. DD's been introduced to the girlfriend as 'new mummy' and her family as new relations, and she's understandably confused. Luckily, school have been on the ball - it seems she's been mentioning some worries, and they've explained they're absolutely ready to offer support.