I have a similar problem I have cashed about 20 grand in total poker winnings over the last 2 years almost all in MTT's but it was always my second income. I have recently lost my job and will do anything to make poker my career path. Unfortunately I don't have the BR to start, I periodically load 40 or 50 onto bovada but tend to be tempted by tournaments out of my BRM range and find myself busted due to variance. Should i try to switch sites? chalk it up to variance and continue to play? or is it really the smart move to sit and play 40 $1 SNG and hope to win 4 bucks at best???
Personally, I have no thoughts of making poker my main source of income. However, I've had occasion to talk at fair length with a few people who actually did. So this comes from what they told me.
One critical thing to realize is that it's not nearly as easy to make a living from poker as some might think especially playing large-field MTTs. For example, let's say you set a fairly modest target of withdrawing $4k each month to pay your basic living expenses. Then, let's assume your long-term ROI will be 10%. These numbers mean you have to invest a total of $40K to enter tournaments each month.
You don't need a $40k roll since you'll be using your winnings, but then factor in your average buyin. If it's $110, that means playing 364 tournaments per month. If we assume 25 days per months, that's an average of 14.5 per day.
How many hours per day this works out to mainly depends on your avg number of tables and how long you last on avg.
Also, in terms of BRM, let's say you decide your guideline is to have a minimum of 25 buyins. 25 x $110 is $2750. But if you're right at the minimum, you have to drop down immediately if you don't cash in the very first tournament you play, so let's give you a buffer of 10 buyins. This would mean a starting roll of $3850.
Of course, no roll is enough unless you're good enough to be a winning player at the level you play. So unless you're already good enough to win at $110, you need to work yourself up. To make $4k per month playing lower, you need to play a lot more tournaments even if you assume a higher ROI. Or you need money in your pocket to cover your shortfall from $4k until you work your way up to winning that much.
You can play with the numbers of course, and my reference sample is only a few people. However, they all told me that the transition from making a decent amount per year recreationally to making a living was tougher than they thought it would be.