Good points...but dealing with more real world numbers.
Trading Only
$100,000 trading account
25% annual return.
Year 1: $100,000 + $25,000 return - $60,000 (living expenses) = $65,000
Year 2: $65,000 + $16,250 return - $60,000 (living expenses) = $21,250
..........
Trading and Software sales...