You will need to meet up with the priest taking your marriage a number of times to prepare for your marriage, you should arrange the first meeting about three months before your planned wedding date.
You will be investing a lot of time planning your wedding. Your big day is of course very important, but we want to be available for you in helping you make your marriage blossom and last the years. However much you think you know each other, you are still two separate individuals with different backgrounds, personalities, experiences, hopes and fears. We are keen to point you to resources that will help your marriage commitment last a lifetime. The Marriage by Design is an online video resource, and offers you the opportunity to lay a firm foundation for your future. Details are on: https://www.careforthefamily.org.uk/courses/courses-for-couples/marriage-preparation/
The wedding information on the Church of England’s website is another useful resource at: https://www.churchofengland.org/life-events/your-church-wedding