Yes but not at the expense of your constant loses, we try to keep it going regardless but we should be mindful and know when to stop.. it's just seems like gambling you're pushing in for positivity but then there are factors limiting you to do so and hence you don't want to give up. But when you know the trading system isn't for you it's better to stop rather than having waste of funds .
Trading should be done caution and not done carelessly all in the name of trying to make profit, if it is not really going well then we should know when to take a break at least, we should be mindful of our losses and avoid forcing your way when the strategy is not working out well for you and find solutions even if it means a change of strategy. It always leads to more losses when we try to turn things around when we are experiencing series of losses but sometimes patience and perseverance is key to turning things around.
There should be a limit to how far someone can push himself. Like in trading, if someone is just starting up, there should be limited startup capital, which, if they are unable to get something out of it, they can take a break to learn more first or, better still, look for something else to do instead of making more deposits and sinking it into the broker when they don’t have all it takes to get it all back again.
You have a point, taking a break is important else you will just keep getting more losses. The break will help you reset you mentality and probably turn things around for you. I won't advise beginners to trade without having proper knowledge about trading else they will risk losing their capital easily.