Yes. If you call small change money. To make a living you need to include a lot of marketing and networking - find, create, capture, retain followers. If you're serious about making a living online, writing blog posts is not going to do it if you don't get your business model right, which must include blog traffic, and monetization of the traffic.
Oh, and this won't happen overnight, never mind what any ra-ra snake oil salesman tells you on his blinged out splash page where he is trying to con you out of $19.99 (reduced from $29.99, reduced from $49.99, just today, and only for you) just so he can tell you all his "secrets".
Discipline, hard work, patience, and perseverance.