Of course you can, but it all depends on the sites you are writing for. Frankly speaking, it might seem impossible for you to make a living doing content writing, but with determination and perseverance, you can definitely get your way through it. I know there so many revenue sharing sites out there that are out to milk writers dry of their creative works, but it doesn't mean there are no other sites that are willing to pay considerable amount to their writers.
Although content writing might not be able to make you starkly rich, but it can atleast put food on the table, pay bills, etc, for you. There are few websites and blogs that pay decent amount if you prove to them how engaging your contents are. They are even willing to hire you to be writing for them in a long run while you would be compensated handsomely.
Other reputable websites you can earn in not only through content writing, but as well as data entry, transcription and translation, website design, just to name a few, are Freelancer and Upwork.