Four years is an absurd amount of time to get to break-even (ie paying yourself an income that covers your bills and the company bills), particularly if it's a one-person bootstrap.

Lightning in a bottle is 1-2 months to break-even under the bootstrap scenario. 6-8 months is closer to reasonable depending on cost of living for where someone is living. Anything much beyond that time-frame means something is very, very wrong (or it's a particularly unusual business being formed, requiring years of build time).

Four years to get to a few thousand dollars per month in sales? I don't think so.