Quite frankly, I'm having an atrocious time at it now. I have 4 trades up, and they are all losing. My view on that is that it is not the journey that counts, but the final destination. That final destination is when I hit "close" on the posiiton.
Therefore, there are times that seem to be harder than others, but even though that is the case, I've had one losing week in the last 3 years (Based on closed positions.), and no losing months in the last 3 years. My methodology is unorthodox, but effective for me.
I also have equi-amount in liquid assets, which also allows me to be a little more agressive than I otherwise would be. If something really messes up, or I find another pair I want to trade, I can throw additional funds at my account. With that security, it allows to be a little more patient, stay in trades longer, and not get in a flux when things are going as they are now with my live trades.
Another thing I do is that when things are not going as well as other times (like now), I stop trading. This is a time I can surney, kick back, and study the markets more. It is a time for more free time, because is not being taken up with looking for the next trade setup. Life is still good when 4 trades are going against me. When they recover, and I cash them out for wins, then it will be back to business-as-usual.
I think it is not a good thing to want to get back at the markets. I'm the boss, but the markets are still bigger than me. This is why it is important to just take a deep breath when things don't go well, and add just a little more ice to my veins.
So, yes, it is the law of averages to have a lot of months at 100%, and to have some not so good months melted in. If a person says they never have any down times in trading, they're lying. By "down", I mean along the lines we're talking, and not emotionally.