I feel your pain! I had a bad losing streak the same month I got married. As if the stress of planning and pulling off the wedding wasn't enough. My son even commented on it during the wedding reception to all the guests. Great.
My recommendation is to reduce your bet size dramatically. Depending on your personal financial situation, you might not want to stop trading entirely, although that depends.
If you have a system that picks 80% winners, then why are you not trading all of the signals so that you win 80% of the time? (Also, that statement doesn't cover the average win to average loss or, in other words, the expected value, which you don't share but is important. I'll continue by assuming you have a positive expected value, an 'edge.')
If it is due to the constraints of capital, then you need to see how you are selecting among the trades to take. If your expected value is truly good and your statistics are solid, you should choose to take as many of the trades your system proposes as you can (within the constraints of proper risk control) and - if that's not all of them - then select the subset randomly so that your subconscious biases don't interfere with a statistically sound system. Alternatively, you can narrow down the number of trades by trying to find a statistically significant covariate to weed out some of the trades, but that's probably not the most important issue at this point.
Most importantly, however, I suggest you need to take the time to very carefully see if you have over-optimized your strategy so that backtesting appears better than live results will be. This is a common error and it will ruin your account if you don't actually have a real edge (ie positive expected value) in live trading.
*IF*, after careful examination, you verify that you have a systematic approach that has favourable statistics and is not over-optimized, then you can dip in with a smaller bet size than usual, and slowly increase your bet size as you regain your confidence until you reach the optimal bet size given your risk constraints (most likely much lower than "kelly"). Being emotionally able to follow the rules of a profitable system is very important: better to bet less and correctly than too much and incorrectly.
Edit: After re-reading your post, it looks like you might be selecting fewer trades to take as a way to reduce your trading right now. I would suggest taking all the trades but doing each one in smaller size, if that is possible with your account size.
