Hi, I'm new to the forum, but just wanted to say Well Done. I did my first wedding in June as the 'official' photographer. Again for a friend. it was terrifying!! Im glad I did it though, was a massive learning experience. I wouldn't be adverse to trying again (in the future!!)
The best way to learn is ask a wedding photographer if you can second shoot with them or even just go and assist without shooting and just watch how other people do it, thats what i did (a couple with Bandit in fact) that way you are getting some experience without the responsibility
Photographs are the memory of the events. When ever you watch it you just imagine like you are there and all the moments comes alive.
So, photography is very useful for making life memorable.