I’m a masochist. I code and write simultaneously at Notepad++, with preferences set up to my kind of flavor (black screen, shiny syntax, etc.). So, yeah. Not only coding and writing, I also modified the software 
As for planning out the story, I use various tools and resources.
draw.io (online graph/chart/map whatever maker)
worldanvil.com (great site! It sucked 80% of my daily schedules the first time I found it)
Some channels on youtube to get the 'ol brain going: Artifexian - Worldbuilding | Skallagrim - Medieval Armaments and HEMA | OSProduction - Tropes and Cliches | TWA - Even better tropes and cliches | Extra Credits - Game Design
That, and a personal notebook that I’ll have it anywhere I go (i.e. my phone)
Well, let’s see 
I started writing February 2017.
That version got scrapped 2 months later.
Made another draft, keep it private. Only invited ppl via PMs.
Scrapped again.
I believe there’s another draft, but I also got it scrapped, I think. Never make it into the public.
Around the end of 2017, I’m finally confident to get another draft up and published it again to the forum. In case you’re curious c:
Both! Well, possible outcomes first. If I find that a path needs more time to develop, so be it. This way, it’ll feel natural when something is short, something is long.
As I said previously, I’m a masochist c:
However, one thing that’s the most important to me – despite all of that – is the passion. Write what you want to write, don’t ever feel forced to do it.
Unless you write for a living, that is