[You tend to try to get too much into one sentence, which can lead to confusion on the part of the reader.]
1) I'm x years old and have been in the investment business for only twelve days, making a profit of more than $xx so far.
2) A few months ago I came across a concept called xxx, which has been used to scam people. To put an end to this practice, I have created a program where one can earn some guaranteed fixed profits. I'm sure it is going to surpass all other HYIPs one day.
[I'm not familiar enough with your situation to advise you further, but perhaps this will serve as a start. I do see a discrepancy concerning time - 12 days ~ a few months ago.]