Stop loss means that when the price of crude oil falls to the lowest price you can bear, you close your position and sell it, which is stop loss. How much the future falls, that's your loss.

Take profit is how much profit you plan to make, such as 10%, 20% or 30%. When the oil price rises to this point, sell it and get the profit you deserve. It doesn't matter how much it goes up or down in the future.

If investors can do this, the probability of making money is still high. Sadly, because of greed, it is difficult for most people to do it, so most people lose. This is the root cause.