No experience to help you here, but I would say that I am sure you can adapt to whatever happens - it may take some time, but I am sure you will get there.
And a lot can happen in 2 years. Including your daughter deciding that she needs to stay at home for a while longer due to various different circumstances (many of them involving money - or the lack thereof - but all with the upside for you of her being around for longer!). Or if she is not at home, then nearby. You sound close, so it may be that *she* won't want to zip off across the country.