Really? I'm not sure if I'm doing something very very wrong then. I must be over-leveraging my account, or maybe risking far too much per trade. I thought 50% per year is a tiny return. The strategy that I'm taking live next week that I've been testing for a while now yeilds returns of around 24% per month. Maybe this is just a lucky streak then perhaps
First of all, remember that 85 pct of retail traders lose money. Thus, if you simply breakeven, you are in the top 15th percentile.
Secondly, compare your returns to other types of investment, e.g. stockmarket, bonds, bank accounts, hedge funds, and you will see that anything north of 20 pct is considered good.
Third, just do a little arithmetic to see where 24 pct a month will get you. If you start with £10,000, after three years you will have £23mio (1.24^36 * 10,000). Does this sound realistic?
A better way to look at this, rather than just focusing on an expected monthly return, is your expected return divided by likely drawdown. So if you're trying to make 100 pct a year, what kind of drawdown do you think you'll encounter along the way? (With a mechanical system you can backtest to get the answer, but with a discretionary system you have no idea..)
For those kind of returns, you'll probably get a 50-60 pct drawdown at some stage.. people invariably overestimate their capacity for drawdown (above 20 pct it starts to get uncomfortable).
I think it helps to be realistic in a trading endeavour, much the same as it would for any start up business.