Assessing a run

I just caught a nice short on the GBP/USD using fib confluence but got sht scared and pulled out at 36 pips, still nice profit.

But it's still going down. What's a good way of assessing how far it should go?

Indicators are useless in these circumstances I think.

Fib extension suggests around 1.8680 - I just can't believe it.

You could look at the other side of the bollinger bands, which now sits around 1.8750, or the 1.618 fib extension which is what I am holding for which sits just above the 1.8700 psychological number.

What does experience say - extension or retracement on US open?

Thanks mate.

Don't know. Don't have enough experience. But I will keep an eye out.