There is no way to avoid losses when you are a trader the risk is part of the game, what you need to do is to create an overall strategy and determine how much money you need to win from each trade and how many trades you must win in average, if you are a day trader you need to win something close to 70% of your trades at minimum, if you cannot do that then day trading is not for you, but there are good news if trading is not for you then you can become a long term holder, if you do that, then your losses will only be in fiat and not in bitcoin and the only thing you need to do is to wait for the right time to sell your coins.