I am not surprised that Friday was a negative day for you. It was the end of a week just before a new week including major events such as G7 meeting, US/Nth Korea summit, FOMC and ECB meetings. This meant a lot of Friday trading would be spent adjusting positions and exposures rather than directional trading.
But there is a very important issue here in your post. I am sure it is quite a common situation, especially for new traders starting out with their live trading. ( I don't believe you would be saying this if you were trading a demo account or are a veteran).
Obviously the prime objective is to make a profit but in forex trading this is never entirely in our own hands. We only deal with probabilities and that means there will be losses no matter how skilled is our trading "craftsmanship".
But this type of problem arises when we start to macro-focus on our past profits and the specific trade we are currently contemplating instead of the overall progression of our account over a period of time.
The danger when our focus is distorted in this way is that we tend to stare at the price movements of our open trade and forget the strategy parameters and then take a quick profit instead of giving our trade room to breathe and reach its full potential. Equally, when the trade is in minus pips, we tend to let it run rather that realise the loss - or even "hedge" it with an equal and opposite position. Somehow, locking in the loss feels better than closing our the original position and we falsely believe we can then "trade out of it" in our own time. It rarely ends up with any improvement!
There are maybe several factors here in your situation:
Perhaps you use a mechanically- based method but do not (yet) trust your method sufficiently to be assured that over a number of trades it will produce a net gain regardless of each individual trade outcome.
Or maybe you trade on a discretionary basis, judging your trades on a subjective assessment of what you are seeing - and do not have sufficient confidence in your own ability (yet) to act on what it says.
You have not (yet) developed a clear enough risk/money management approach that you feel comfortable with and confident that it will protect your equity by limiting the impact of each individual trade and also provides a net gain over time provided your strategy actually works in your trading style.
Either way, you have to appreciate that in order to profit from trading you need to be in the market - and if you are in the market you will make losses. What you now need to do is analyse what is actually distorting your focus here and find the solution to that - then trade a position size that is small enough not to cause concerns about its impact on your overall account size and follow your method with discipline, keeping a journal/analysis of your trades, and clarify your risk/moneymanagment parameters.
You need to build your confidence across all these areas...….