As you started you were talking about a targeted steady 7-12% gain per 28 day investment term (averaging to an >123.5% annual gain). 8 months later we are looking on an total gain of 0.33% (resulting in an 0,49% annual gain).
With this number so far your $250,000 USD example would be worth little more than $262,500 USD in 10 years.
Your calculation looks nice but is far from reality.
PS: Better check your calculations in the video. The first $3000 USD you calculated for 11 years not 10, which makes every following calculation wrong. And to be honest dude with you juggling around that much money you should be able to calculate the 30% ROI for 10 years properly in one formula.
RE: 30% ROI Investing - is an absolute game changer!