When I got to real trading that is where I battle with emotions and fear this is a big challenge especially for newbies following those trading rules becomes a big problem infact after a losing streaks a trader will jettisoned the trading rules and trade in a bid to recoup all the loses thus ended up with more loses
Sometimes when the market hit you, you want to leave the rules as you said but I want to advise newbies not to leave the rules when they are down. The rules are the ways you can get back on track.
Most times the market does that and you make losses, use stop loss to minimize your losses and you have more opportunity to trade again. Emotions is not proper to be involved in real trading but good strategy and the rules.