Okay, so in this tutorial sort of thing I'm going to tell you how I write and some tips.
This mostly goes for reader-inserts, just so you know 'kay ^^
This is just how I work though, and I'm positive there are a multitude of different ways to write, this is just how I do it. Experiment! Play around and use different ways to find your own style.
First off is how I write:
Step one: the initial idea.
I start off with a vague idea, something I find cute for instance. It can be a scene or a quote or just something random crossing your mind. Personally I write any ideas down, you never know when then can be useful!
After you've decided on the type of story you want to write, you decide on your characters.
Step two: characters and writing perspective.
An important step! You have to choose a character, unless your idea fits one extremely well. I try to choose different characters, as sticking to one can get boring (Fanfic wise).
You also have to decide if you're going to make your character human or something else. And you stick to it!
You can't have a werewolf with vampiric tendencies!
Step three: building of the storyboard
I usually do this. I start with the first scene and then work through the story on how things happen. I usually end with the last sentence, which has to be good. You have to finish up and I find that the last sentence is most important.
Sometimes when you know what you're going to write, you don't need to, but I find it helps. It helps you make sure you know where you're going with the story and often helps you imagine how, for instance, a certain situation came to pass.
If you do create a storyboard and start writing, when suddenly a brilliant idea hits you, don't be afraid to change it accordingly.
Step four: the writing
Here I'll tell you some tips and things:
Descriptions: I've found that describing the scenery, weather, period of time,.... really helps visualize your surroundings. It let's one get drawn into the story and feel a hell of a lot more real.
Also don't be afraid to use adjectives! Pick up a thesaurus! They can be extremely helpful at times.
Telling the reader what the character feels is also good, it makes the character more human and gives them more depth.
Things I avoid using:
Sentences: Don't always use the same way of starting. "He did this", "she did this" gets old real fast. Instead of "he glanced at her and smirked" try using "as he glanced at her he smirked".
Use different ways of starting. "Laughing he...." "When she'd gotten up...." stuff like that makes the story a lot more easy to read.
Don't always use the character's name. Instead try using: "the brunette" "the bespectacled man" not just "Alice", "John", "he", "she".
Timeskips: Okay I'll admit I think a few of my earlier works do still have 'timeskip' written in the middle, but really avoid it.
Don't just put 'timeskip bought to you by Flying Mint Bunnie' or something, it can really put you off. Instead just write: "It'd been three months now and the amber leaves were now cluttering the frosted ground."
Makes for much nicer reading material see?
Grammar: I can't imagine how hard this must be for non-native English speakers! Honestly, I admire the guys who put effort into writing but it really is essential!
If you don't speak English fluently I suggest you ask around for an editor who can speak English really well, it's not hard at all, just submit your request for one in a group and you'll have some people to help you in no time!
The difference between "you're" and "your" is hard, but important.
Your is a possessive word. If you own something, you use 'your'. Example, "Your scarf, your hat, your books, your orange and banana split sundae with a sprinkle of sugar."
You're is a contraction, meaning two words joined together. In this case, it's you and are. So, "You're a good person", means, "You are a good person."
See the difference?
Appearance: don't specify this, everybody is different and if your reader is in fact quite skinny with no curves and yet in the fanfic it states that they have a well-developed body, it's going to put them off. It could even offend them, you never know. So try to steer clear from that.
Point of view: you don't need to say 'P.O.V. change to whoever" just do it, obviously if you're writing in the first person, then that's not possible. By describing the character's feelings, how they see a different person tells you enough that you're reading their side of the story.
Author's notes: Dear authors, I know as much as you do, that telling the reader what you thought at the moment you were writing sounds funny, but it can really spoil the mood. If you do however want to comment on a certain scene or phrase, do so in the author's comment at the bottom.
Translations: If you use foreign phrases or if there's a part in a different language, make sure to post the descriptions of them. There's nothing as frustrating as reading something when some phrase pops in say Norwegian and you haven't a clue what it means. (That's what Google translate is for I know)
If you do add a bit in a different language make sure it is correct by asking a native speaker or by looking it up properly, Google translate and babel-fish only go that far. Also if someone does tell you that a phrase you used was wrong, don't get angry about it.
Often that person isn't being nasty and merely wants to point it out, so just accept their advice and converse nicely! I've found that usually after someone's commented criticizing my way of doing things I talk to them, accept their advice and have a chat about them about something or other.
Trust me, I know how irritating it is when someone criticizes you, but don't take it to heart.
That should be about it.
I hope this will help you all! Again, remember this is my advice and how I work. I'm sure this doesn't go for most people, so try different styles!