Banish imposter syndrome when writing! While many can seemingly launch themselves into the world of writing and then shout about it with ease, many of us approach in more tentative, even timid, steps.
It’s useful is having a few different processes to fall back on. Variety is the spice of life but it’s also the spice of writing. It’s not as simple as “plot thoroughly” or “make it up”, there’s a degree of both, and lots of different methods within those.