... or alternatively, just automate, leave at same size, and move on (i.e. to another strategy). Scaling up can kill badly if your biggest drawdown comes when you're at biggest size. Watch all your prior profits evaporate ...
If that is the case I am afraid to say that if the sequence of trades you showed increases in time and size it may provide evidence of randomness. If you are trading intraday, we will need at least 100 points to evaluate your future prospects. It would be very interesting if you would supply the data in the future. I analyze the performance of managers and advise hedge funds all the time. The rate of failure is close to 95.5% if you double the performance data period.
Wasn't that what the guy who invented the bidet was trying to do? Wonder if there are any bidet billionaires out there (bidellionaires?).