Things like setting stop loss, not putting all of your money in one single trade no matter how sure you are, understanding your risk to reward ratio, knowing when to sit out a trade , all of this makes a huge difference.
You did not add knowing when to enter and how to enter a trade as well. From the little I know about trading, I know that counts too. Traders who know sniper entry are usually good with making good use of trading opportunities that they see and making the most profit from it.