The best thing to do would be try to get another job and try to do this poker thing on the side. There is no reason why you can't do both! The smart A response to your question would be if you're asking this question then you're not ready to do it.
The helpful response would be make sure you know how many months of your monthly expenses do you already have saved up in addition to your poker bankroll. And before you get to that then you need to know what your monthly expenses and budget are. You have a goal of $100-$200 a day? So which is it? How many SNGs would you need to play a day or in a week to reach your goal? SNGs are streaky by nature so you might be better off doing it by week and at what level? What is your win rate at that level right now so you don't set unrealistic goals? Does your
poker site even have enough volume for you to meet that goal? What is your competition like?
Moshman came out with that SNG book about 10-15 years now and I can guarantee you that there are folks out there that not only read that book but know it very, very well and had 10 to 15 years to build on top of that knowledge. I don't know if you're going to be playing those type of folks but be aware that there are SNG specialists out there that do it for a living and have been doing it awhile. Do you have enough set aside for downturns? What is your answer if this poker attempt doesn't work? How reliable is that option? I mean the list goes on and on and on.
So before jumping off the cliff head first, I would form a plan and ask questions to the legitimate professional folks like at Cardschat (if you haven't already done) with track records that actually know something about this stuff. They would be an invaluable source of info for you. Ask them what else you could do in addition to playing that could supplement your income besides just poker. Some are poker coaches some blog about poker ask them what they do to supplement their income if any.
And not to be a jerk but there are folks that play for 5 years or 15 or 50 years but they don't study the game. There is a HUGE difference between playing the games for fun and studying the games. I can't tell you how many countless Amazon
poker strategy book reviews from the poker boom that I read today that I've studied that give fundamental ABC123 advice that can develop folks into winning players especially at the lower levels but folks will not take the time to study them and just enjoy playing the games which of course there is nothing wrong with. Really simple example are those old 2+2 advanced books especially on the variations that take A LOT OF TIME to work with and study. You just can't read those and say "I'm done", lol. You have to read the material, look for the opportunity to use the strategy in a game and evaluate that hand and do it countless times. And you can't just do in in an afternoon, lol. When I look at some of the reviews, they will say its outdated, others say they're too full of poker jargon, I mean the list goes on and on but all I see are folks that either don't have to the base knowledge to understand the concepts or not willing to put in the work.
I've ranted too much, my point is, you need the knowledge and be honest about your game to evaluate it , figure out where you are in life to see if its practical to attempt to play poker for a living and do you have some type of fall back plan or security if things don't go your way. Even if you're not the best player then you need to at least know the stats for good players, like are you 3 betting enough or too much, how good is your preflop starting hand knowledge, are you defending your blinds too much or too little? The list goes on and on but you have to know where you are before you commit.
I'm not saying it can't be done but there are a lot of disasters that you can avoid in the process that will save you time, money and agony if you just do the research beforehand. And believe me, even if you get your wish, you might not like grinding in a chair for countless hours with no guarantee of being able to pay the electric bill when its due, lol. So for the last time, try it out, ease into it, get some experience, take it seriously, find out all the details for playing poker for a living but do it part time before committing full time.
Sad that you lost your job and I really hope things work out for you but be careful and prepared if you decide to go down this path.