Oddeus: Btw you can´t make a living from writing, unless you write exactly what people want to read. Believe me, I know.
(Just in case: This is not sarcastic. I´m serious.)
Perhaps I'm just very lucky then. I've made a healthy living from freelance writing for about 15 years. Even better, throughout the entirety of that time my work has mostly been producing niche content, focusing on topics I'm familiar with and enjoy writing about.
Like any vocation, how much you get out of it depends on the level of effort you're prepared to put in, along with how adaptable you are working to client briefs. Also, given most content these days is destined for online audiences, there's a plethora of agencies and SEO companies around looking for writers. It's not all about getting more hits and clicks to generate advertising revenue.
It is possible to get decent rates just starting out as a freelance writer, if you're prepared to hunt around, but the level of pay you can command obviously increases with experience and demonstrable quality, pretty much like in any line of work. Opinions can differ as to what "decent" rates are, though, plus the language you're writing in and where the content is being published, will also dictate rates to some degree.
I saw someone in another forum bitching about €20 for a 500-word article being derisory, that they "wouldn't switch the PC on" for what they considered to be such a low rate. Fine if you're a Pulitzer prize-winning journalist I suppose, but for mere mortals like the rest of us, I think that's a fair rate.
I can usually knock out a quality, well-researched 500-word piece in less than an hour, covering topics I'm familiar with. A minimum of three or four of those a day, five days a week, that's a pretty decent level of income where I live and with minimal overheads. I often do a lot more, but at the same time, I don't flog myself to death and like to enjoy my free time.
If the OP is confident writing about their interests, hobbies and experiences, or something they're knowledgeable about, freelance writing can be a very good opportunity to generate an income from home. Full-time, part-time, or just for a little extra income.