Learning how to accept your losses is a sign of maturity, traders that can't handle the thought of losing always end up trying to do revenge trading and the results of this is always catastrophic because they allow their emotions to take over their decisions. There are times that you would definitely lose and times you would be in profit but with risk management you would be able to make sure that your profits are more than your losses
What people need to understand is that whether they accept it or not there is no getting there funds back so it is better to understand were the mistake is coming from and then work on it and this are just ways to get better because for those that that are always failing because it seems they want to always make money and there is no way that it's going to work that way.
And when you watch short video on social media about trading most people lose money and the next thing they try harder that is what mature traders do. Trading is something that can even lead to depressing cases but you dont have to let your self down just because a little loses and this why sometimes they are always comparing trading to gambling because they will break your heart, because both of them when you lose money there is no way you are getting them back. So the good thing will only be when you lose money then you should try more time that is the only thing that makes it more interesting.