Hi Peter and welcome to the forum,
I am sorry that you are feeling so helpless and lost after your recent diagnosis. Here in the forum you will find many people who are going or have gone through the same situation as you, so they will be able to offer you support and advice as Sea Angler said.
I just wanted to reassure you that, apart from the supportive family you are lucky to have and the forum community who are sure to help you with their experience, there is a wide range of support available to you. You can call our free and confidential helpline on 0808 800 0303 to speak to our trained advisers and Parkinson's nurses about any concerns you may have and to get all sorts of practical help, ranging from information on diagnosis, medication and treatments to advice on benefits, employment issues and resources available to you and your family. The lines are open tomorrow between 10am and 2pm and on weekdays between 9am and 7pm, so don't hesitate to give us a ring.
Whenever you are ready to reach out around you, there is also support near you like Parkinson's local groups (where you can meet up with People with Parkinson's and their families or carers), Parkinson's nurses (who can be an invaluable source of help) and local advisers (who can offer you and your family information and support on) that you can find here: http://www.parkinsons.org.uk/local-support
In the meantime, you may want to have a look at some of our informative publications that cover lots of aspects about living with Parkinson's: http://www.parkinsons.org.uk/publications
I hope that helps make you feel a little more supported and less lost, but please keep posting and letting us know how you get on.