If your goal is to make money with your writing, you are going to be disappointed.
You
can do it, but either you accept making enough to buy a coffee, or you are one of the rare few who make it.
Let me illustrate it a different way. Let's say you want to write a quick 20 page smutty ebook. Great.
- Now you need to edit it. You can edit it yourself, or simply not care because this is a quick short erotica piece, but that will make an impression. Or you could pay an editor.
- Now you need someone to format it into ebook code, which you have to pay. You can learn to do that, but not only si that learning, but formatting is a time-consuming thing.
- Now you need a cover. Cover hugely impacts sales. So you could slap something on with MSPaint, buy a pre-designed cover, or get someone to make a cover.
Success, you now have an ebook, it is on Amazon. How are people going to find it? Amazon shows people new books based on algorithms, which is "people who bought x also bought y" and other weird occult rules. Mainly it's about promotion, it's marketing. You are on social media, you are posting and commenting in those communities you're selling to, interacting with people. You need to get reviews and word of mouth.
Meanwhile you're going to be making less than a dollar from each purchase of that one ebook.
The way money is made is a snowball effect. You have 8+ ebooks. The more books you have, the more you sell because someone is more likely to see one, someone buys one and they like it and buy another. That impacts your algorithims.
Patreon is another attractive option, you can skip all the cover art and formatting issues. But that relies even more on marketing, because no one is going to know who you are to sign up at first. And it takes a long time to build up a follower base. All who you need to supply with regular writing. Plus writing patreons aren't charging a lot. So you have to wait until you have a Lot of followers before you're making anything substantive off Patreon.
Going to publishers is a different beast all together that I could go into if you really want.
The point is that you are investing a metric fuck-ton of time and effort before you ever see any profit, and then you need to put more time and effort before that profit is anything worthwhile. If your only goal then is to make money, there are hundreds of options that give you more money for less investment. That's why having a goal other than money is important, because it helps keep your motivation going.