Hey,
Yeah, I’ve been following your thread the past few weeks and it’s definitely interesting to watch.
Looks like the GBP news is not going to have such a major impact on GBP/JPY. USD’s string of reports will probably be the ultimate catalyst for a lot of pairs, including some cross-currency pairs. Good call on banking some of your gains. 
I started a trading journal here, but I realized I’m generally not the most open guy about anything I do, so I just decided to switch over to an incredibly personal trading journal. I just write my trade analyses & the trades I took for the day in the trading journal along with a bunch of things on emotions, trade retrospect etc. etc.
Well, my system consists of primarly looking for chart patterns. I’ll then plot major S&R zones and key levels where I think we might see a lot of action happen. I then plot a 200- & 100-SMA and see how the MA’s move in relation to one another & whether or not price action is above or below the MA’s (I do this on 4-hour charts mostly). And at last of course, I get on bloomberg and read up on everything I can.
I’m also quite a big fan of candlestick patterns, so I definitely look out for those as well. I usually do that prior to entering a trade, looking for good entry points by spotting bearish engulfing patterns, indecision candles, dojis etc.
Nikz