I try to deal with loss by taking a break, often after a loss you are upset or angry and so it's not good to keep trading. I take a walk or play some video games to clear my mind, then when I'm clear minded I get back to it and deal with my loss by making a profit
i have strategy in trading im not doing all in trading im spreading my btc for 3level so i can buy support if the price back up 50% so i cant get my lost i the first level you can try that and dont trade if the bitcoin is surging wait for some dip on the altcoins.