Unless you focus on Stop loss.No matter how good your research is...you can lose big in your bet.... as the market can go against your bet..as it very frequently happen...

You will do great in the stock market...Once you love to lose small money... Always make sure to have stop loss...ALWAYS...so you know at what price you dont' want to deal with the next trade anymore..if it goes against you... and it can happen even to the best stocks like Tesla or MSFT or NFLX..as they sometime dip 20/30 per cent within months...Always have stop loss in your mind before you even make your trade...and you'll be fine...the problem with losing money comes from not having stop loss.and losing big in one poistion..totally unnecessary avoidable by having stop loss