So to avoid more lose as a trader accept your losses and move on, keep an open mind and you will start gaining more than you are losing.
Life happens your loss should be used as a lesson and motivation to achieve success.
This is the most common orientation giving to any trader in trading school or class, it however it's very much difficult for people to accept their loss some really accept and that prevent them from lossing more.
Chasing your loses is like running after your shadow know fully well that it's with you can you can't catch it.
The rule is simply never chase loses instead stay focused on the one that is still to come, that could change a lot for us (you).