Fantastic Amanda! It's an excellent idea to have a goal like that to aim for and keep you motivated 🙂 Have you ever been running before? If not, the best advice I can give you is to get a good pair of running shoes - they are by far the most important thing. If you ca, go to a specialist running shop - I believe there is one in Birmingham - as they will be able to advise you of a suitable pair. 🙂
Good luck. Time to start getting the feet ready for August, the socks will be as important as the footwear.
As Northerner said make sure you have been properly fitted for the running shoes.🙂