I had to learn this the hard way. Trading with my entire bank roll seems so insane and embarrassing! I have seriously blown up 2 trading accounts to the tune of over 100k.
First, it is recommended that you only use 3% to 5% of your bank roll per trade. I know there will be some traders who handle risk differently but look up THE MAJORITY of trading legends and this is so.
Or you could implement a strategy where you trade small lot sizes, 10, 20, etc. shares and increase lot size after a specific number of successful trades. A bad trade could mean either drop down X amount of shares or stay at current level share size until you have a string of successful trades.
Leave your comments below on tips you use to preserve your capital so others can try as well!