-You can control how much money you put behind the idea.

-You can control which markets you trade in.

-You can control how much you are willing to risk per trade barring any gap downs, or halt situations that might impact you negatively.

-You can control what type of set ups you buy.

-You can control when you get in or out, barring a halt.

-You can’t control the outcome of the trade.

-You can’t control how the market will react to news, try not to impose your views too much.

The point is not to fret over what you can’t control, once you put the trade in along with your stop for the most part everything else is out of your control.