I've got a Twitter specifically for writing fic @AcaciaCarter. Read about me writing fic that you will read! So meta! Seriously, though, if you're interested in my writing process, that's where you'll want to go.
Everyone has a favourite character. Even if you say you don't, you do. Mine is Neville.
In school, I WAS Neville. Never particularly good in classes, trying as hard as I can to not be noticed so I wouldn't be made fun of. I grew out of it, as Neville did, though I didn't have to be set on fire and kill a giant snake with a sword of mythic proportions to do it. Since I grew up with Harry Potter, I grew up alongside Neville - and always had a soft spot for him.
Not that you'd be able to tell by the way I treat him. Poor boy can't get a break.
Most of my fics are stand-alone and have no relation to one another. However, I do have one continuing storyline that is internally consistent: Long Way Down. This story arc begins with An Ode to Living, continues with The Breaking Point, goes on to include Polarity, grows darker in Tempus Vernum, and is concluded with Beyond the Pale (not yet posted). At least, that's the plan - we may see additional one-shots added to it as time goes on.
One of my favourite approaches to fic is to stick as closely to canon as possible, despite the very non-canon things that happen within them. I like my fics to be something that COULD have happened and don't contradict canon outright. You'll find that if you squint, you can often insert them into the canon HP timeline quite well. Most of them, anyway.