You should NEVER have a losing "streak"* of more than a few trades. If you do, it's because either your method is not sound or your bias is wrong... that is, not the same as the market's.
*Years ago I had a streak of 9 losers from BTFD in what I later recognized as a bear market. I was giving the benefit of the doubt to the upside thinking that the dips were small pullbacks in the ongoing bull market. They weren't. My buddy had a devastating streak of 14 losers from shorting upside breakouts in what was a strong bull market. In both cases, our bias was wrong.