"I am just not a writer." OH the number of times I've heard these words. Usually following someone reading something that I have written. Flattering as it may be, I can't in good conscious let it go to my head. Because the truth is, writing is a skill, just like anything else. It's true, there may be some element of nature competing with nurture, but that doesn't put good writing out of anyone's reach.
But it is really easy to be discouraged about writing, even for a writer! Here's why:
Writing is an expression. As such, there is literally a limitless number of ways to communicate an idea. Apart from the actual chosen words, you've got to deal with tone, voice, audience perception, context, oh my! If you consider writing simply stringing words along together on a page and then measure how thick your average dictionary or thesaurus is, you can quickly calculate there is an endless combination to explaining even just one thought.
Writing is a product. Our culture is not known for our comfortability with limitless combinations of expressions of a product. We like our products to fit the bill, meet the expectation, fall within the lines, and check all the boxes. We have ingrained from an early age that there is a correct way to produce good writing and unfortunately that expectation can hinge heavily on the teachers you had in school and what their own experience was with writing. If your writing ideas fall outside this norm, you may not value them as much as you should.
Writing is a spectrum. The genres, the storylines, the real from fake, you may write more academically, rooted in fact and research, or you may write more creatively, weaving intricate fantasies throughout imaginary worlds. There is dark and there is light and every single gamma ray in between.
Writing is subjective. It is subjective to its recipient and what you write may fall on blind eyes one day and then ignite a serious life changing quest the next. Our human attention is so fickle, busy, and distracted, it is really a wonder people have time to read anything anymore at all. By putting your writing out there, you are essentially trying to aim at a fluctuating target. So, there really is an element of simply putting the right things in the right hands at the right time.
Writing, though an independent activity, is actually very dependent on others. If we never attempt to share our writing, we live and think in a vacuum. Without the feedback of others (painful as it sometimes may be) our writing never improves. We get stuck in this same frustrated pattern until we convince ourselves we "just aren't writers." But the reality is, you probably just need more practice, some honest feedback, a good example to follow, open-mindedness and self compassion.
That doesn't mean you'll be a famous published author. From one writer to another, that is a whole other challenge in and of itself. But I hope it will give you the confidence to say what you've been wanting to say. Write what you've been wanting to write!