It takes a lot of patience to be a trader mate. If your plan didnt work you should have another option because if you will quit right away you already accepted your loss. Keep in mind that you wont be a millionaire in 1 day so learn from your mistakes and apply it to be better.
Leaving early has its own advantage and disadvantages too. Losing big part of the balance requires to re-think the planned trades and previous strategies with proper money management. Traders can stay in markets with the loss but no one can guarantee success due to psychological issues.