The key is to Have proper risk management. Common mistakes that a lot of traders are doing is to simply go "all in" like they are playing poker. Do not use more than 5-10% for each position so you will not get rekt at your first trade. Don't risk 30% to earn 5%.
Nice one there definitely, having a good risk management is a good start to count out loss and also having it at the back of your mind that every business in one's life has risks.