It all depends on how much time , money and effort you are spending to close efficient and profitable trades. Whether you run into losses or make huge profits , it all depends on what your trading strategy is .you are wholly responsible for your actions.
So always be on your toes , keep a track of market trends , price movements and necessary information about companies you are willing to invest in, as all these factors affect your profits and losses. Stick to your strategy and follow a disciplined approach for good results.