How do you handle a losing streak?

Every method has them, and even one with a real edge can produce eight or ten losses in a row. How you respond is often what separates a drawdown from a blown account.

We'd like to hear:

• the longest losing streak you've had, in trades
• whether you changed anything during it: size, rules, time away
• how you decided whether the method had stopped working or it was ordinary bad luck

The maths is covered in drawdown and recovery. This thread is for the personal side: what it felt like and what helped.