Making a living as a potter vs. making as much money as currently do is a losing battle if your current job pays well and has great benefits. Chances are you will never make as much. Selling $5400 worth of pots every week? Impossible. $5400 a month? Very doable, with hard work.
.... and if you live frugally, and run your business frugally, $5400 gross per month equals a very comfortable life. Frugality is a skill that many Americans seem to have forgotten how to do. But it is an essential part of the equation for a full-time potter.
I understand that some people think making many multiples of the same pot sounds bad. For some people it ruins all the pleasure, but for others like me, this is very pleasurable. When I look across a table full of production ware at the end of the day, again I think "I can't believe I get paid for doing this." So this is an important question to ask yourself if you are aspiring to make a living at this, whether you would enjoy this or not.