Religious experience vs Ordinary ExperienceWatch
I'm doing AQA but it's still a topic in that so I don't imagine it's dissimilar.
I would talk about classifications of Religious Experiences by Caroline Franks Davies and Richard Swinburne. These give an indication of what a religious experience should be like.
Most importantly an ordinary experience does not include the divine.
Ordinary experiences also do not usually have the same effect, William James "God is real because his effects are real". Ordinary experiences do not generally change lives, of course there are a few exceptions and although some Religious Experiences don't change lives; most have some effect.
Ordinary experiences are also not unique and Religious experiences as described by many scholars are.
A religious experience unlike an ordinary experience has numinosity (fear and fascination) as described by Rudolph Otto.
Sorry it's not much as it's off the top of my head, if you want more I can easily find it in my folder at some point!
Hope this is helpful.
I found some stuff today whilst revising, Hardy and Hay have a huge list of the differences between religious and extraordinary experiences in Peter Cole's book Religious Experience (If you don't have it I'd highly recommend it as it covers virtually everything).