I think it will be better to close the position with some 30-40 pips profit right now, because the wave structure looks tricky.
The dollar is a cheap ho, it'll just keep going down for any price! I take it you had a good day today?
Based on statistics, a frequency distribution in particular, when the GBPUSD makes a new high or low for the day, a retracement or reversal of 20 or more pips is highly likely. This can be exploited for profit.