You can’t ignore losses in your trading. You can’t order yourself not to care about it. Negative emotions tend to take over even the strongest men. However, if you restrict your losses, it won’t be devastating for your depo. It’s impossible to avoid losses completely in trading, but losses can be a part of your trading plan. For example, you may accept some loss if you think that it will pay off. In this case, your loss will be the price for you win (if you control and restrict this), a sort of commission for a profitable trade.
Very often volatile sessions bring many traps from market makers and if you intend to follow the market, most probably you’ll get into several traps set by market makers and lose money. You need to make your loss relatively small and controllable. You shouldn’t take it as a personal tragedy, but as sort of unpleasant commission that won’t stop you.