Day trading is an excellent way to make good money, but if you've heard it's easy or a form of passive income, you've heard wrong. You need to put some work into it.Day trading commodities and stocks is more like a highly lucrative job. You need a number of firmly ingrained habits to be successful at it.The first thing you need is a great sense of time. Anyone who has trouble getting up first thing in the morning or needs to jumpstart with that first cup of coffee will only be miserable day trading. That's because the best time to figure out what you'll be doing on the market on a particular day is right before the opening bell. That happens at nine am in New York City - six am in California and five am in Hawaii and Alaska. You can't just be an early riser, though. You also have to have an excellent internal scheduling system and clock.The second necessary habit is having good quantitative thinking skills. Working on hunches will allow you to make or lose money in day trading. You need to be able to read and understand the numbers without thinking about them if you want to make good decisions. You have to be able to convert and analyze the numbers in your head carefully, so you'll be able to tell if something is a blip or a lasting trend, and you have to be able to act accordingly.Of course, that doesn't mean you have to be a trained mathematician. You can learn how to deal with numbers correctly, even it's never been your strong suit. Some numerical skills can almost become second nature once you get going.Another habit all successful day traders need is to combine patience, organizational skills, and a strategically short memory. This is a hard skill to learn, since you can't allow yourself to feel disappointed if you miss getting a stop at its top, or if you lose money because the short you were hoping for never showed up. Don't get caught up in your losses, or over focus on the times when you really pick a winner.Habit number four is dedicated research. Day trading won't require going through accounting statements to the degree that conventional long term investing does, you do still need to have a constant inflow of analysis and data. You also have to be proactive about the shares you buy and sell. That means making quick, accurate judgments and acting fast. The only way to make the correct judgment calls is researching properly. However, you shouldn't let the need for research paralyze you.Remember that a lot of the research and analysis won't need to be done by you directly. The best traders always have a number of tools at their disposal, as well as many different data services and research sources ready to access.If day trading appeals to you as a new career, you'll have to build up a support network. You'll need to find some investors willing to help you apply leverage, as well as a good broker.If you believe that you have all these skills, day trading offers an exciting and fascinating way to make a huge income. It's a job you can honestly consider fun, and if you have what it takes, it'll be pretty enriching, too.