Just lost over 2,000 GBP! Any tips on what to buy?

I would buy some professional education and mentoring…

stop live trading all together. When you trade with real money it makes it hard to be objective so master your trading plan on demo then go live.

If you go live to soon you will feel fear to close a loser fear to let a winner run greed to over leverage ets ets ets

Trust me on this go back to demo for a while, get a handle on your trading.

Just what trade was taken here, to lose 2K GBP in a USDJPY trade, this pair has been in a tight consolidation with a down ward bias the whole month of August, To take anything but a short would had been a fools play, and if you did go short you should be up in you position. USD is by far the weakest currency YTD and should only be shorted. Making money in Forex is not hard if you trade in the direction of the trend, matching a strong currency to a weak.

Always remember that you should never go all in with the capital you have so as to save you from such news.
Practice well in demo and keep updated with the news always.
Not to forget is find a person whom you think is reliable and whom you think is worth sharing about forex in your nearby place.