‘The winters seem long, wet, windy and grey’. Yes, that’s ’cos in Northern Europe they usually are - and worse if you’re not very happy or have health problems or feel, sadly, you might have made a bad life decision.
What a shame to leave a ‘lovely’ house. How do you know your kids won’t need or decide to move again? Your life is no longer enmeshed in their life!
Why not turn your arrangements around? Catering, hosting, all heavy on time and money. But you now have 2 small Grandchildren, so if you want to encourage a strong bond, why not also regularly visit them? Maybe if space is at a premium, stay somewhere cheap and cheerful nearby, offer some time with the children before their days are all tied up with school and activities, do some babysitting now and then - and when was that ever not welcome? Arrange their visits to you in advance and use your time and freezer capacity to prepare lots of good food for less cost. Free time without pressure doing batch cooking can free up so much time for more fun with your family.
And gradually work through and sort out your own feelings, don’t think negative stuff - life will all too soon arrive to remove the rug from under you. Look forward to planned get-togethers and impromptu meet-ups; maybe halfway between your home and theirs. It’s not difficult to put together picnics to share in a good park/Pub/green space somewhere.
Don’t just seize the day, but get hold of life by the scruff. Help yourself to feel happy and it will really make a difference.