100/200点系统 (100/200 pip system)

I was wondering how could I apply the "cut your losses fast and let the profit run"
For sure it depends on which market we are.
If that pair at that time frame it shows a ranging, then this strategy is not for that. Or .. need to to exactly the reverse
When you realize it is trending, then mostly is to late. You can catch the 3 or 4th wave. Maybe it works.
The best is when a ranging or struggling market ( low pip at candles ) accumulating energy and it will explode and you catch the direction. Sadly this are the NFP , FOCM and interest rate announcements.
Lets say we don't want to trade the news spike, but after that 1h we will go to the indicated direction.
I would enter with half size @ market and half size at the 50% of Fibo of news spike.
The SL it would be around the pricve before the news or maybe close to 68% fibo.
Risk is what you preffer, but think to allow an 50 pip at EUR/USD, better 100 if you aim 200 pip.
On JPY , especially the GBP/JPY this values needs to multiplied by 2 at least.
Once with all or averaged with half-half position we will enter in news spike direction.
TP it would be the 2x of the SL or 4X, as how you wish. - depends on the news surprize power.

Personally I don't know when the price is trending without a news. I believe it is a fundamental (at 1d, 1w ) for the 200-400 pip movements

If I had any great idea in trading it was tested my thousands already.

So I would just ask how is working this for you?