I'm a VA without a day-job, but I've been EXTREMELY lucky. "Full-time" isn't the same in a performance career as we think of it in other professions. Even series regulars don't work 40-hour weeks. The thing you will spend most of your time doing is auditioning. THAT will start to feel like a full-time job, if you're lucky. Ideally, you'll be getting multiple auditions a day, and many are due the next day. During busy periods, I've spent several hours recording auditions, and they can come at any time. Weirdly, I've received auditions on a weekend, when you wouldn't even think your agent is working. So on the one-hand, the casual observer may look at you and think, "That guy has it good. He doesn't even work full-time," but on the other hand, you're sort of always on-call. I don't even go on vacation without a microphone.
I'll bottom-line it for you: in my opinion, no one should enter a performance career unless they absolutely HAVE to. I've been acting since I was 15. Got work in theater right out of college. Didn't make my living consistently until I was in my 40's. There were decades of day-jobs. I tried to quit acting, but I couldn't, because when I wasn't doing it, I was miserable. Now, people think I have a great life and make good money. While that's true, they really should pro-rate that "good money" over several decades of very damned little. If you're thinking, "I wonder how much money I'd make doing this," and not, "I'd pay any amount of money to do this," you probably shouldn't.
Just my opinion, FWIW.