Yeap, I'm treating it as a full-time.
Finished my national service on July the 11th. During my service and even before my service I was doing it as part-time.
Right now I'm doing it full-time.
Heck, I even rented a small private office. I don't want doing it at home because it affects me negatively (sleepy, groggy, and distracted). And also, I don't want to be seen as a stay-in hobo whom does nothing. So I rented a private office where it is all about work, and making money. I trade options and stocks too so I usually do the studies in my office too.
And heck, I invite my friends over as a hangout area!
But yeah, although I treat it as full-time, there's usually 50% of free time sometimes (unless I'm busy setting up campaigns, keyword research, product research, .etc). So I just put a piano in my office and books there. lol. Or simply go downstairs of my office for a walk because there are lots of eateries and grocery stores nearby. Whorehouse is nearby too! lol
I have to say it's kinda little stress because I love doing IM (hobby and passion!) so it doesn't feel like work at all.
Unfortunately, your close ones might have a problem with you. My parents, till this day, still thinks I've gotten lazy and just don't want to find a job. But my close friends and brothers, on the other hand, seen my earnings in the 5 digits, so instead they admire and encourage me to keep on doing it.
Earnings are tax-free, no office politics, and waking up at your own time to do what you want and when you want.
Of course, the trade-off is security. If Google changes its algorithm, things could be severe.
It's like running a business or being an entrepreneur per se.
Everything has a trade off. If you find a job, you're getting a job security; but getting rich from your job hardly happens (unless you're the CEO of the company, .etc). But for IM, your earnings can be infinite depending on the effort you put in; but you're at the mercy of Google or a change in the IM world and there's no security.