It is a good combination for me because a job and trading will help you to maximize the potential profit that you can get. A job will stabilize your income and it will help you to have your source of income and capital while trading will help you to grow your money faster and you will have more money and become rich by combining and doing those two pretty well.
I have already combined these studies for a long time. I have some time at work that I can devote to trading. I always manage to make a few dollars on the exchange during the working day
Some works can actually give some little bit of breathing space during working hours without getting you choked and mixing with trade during this idle hours can be good.
However, not all jobs can give this chance, for someone like me that is always on the go, long term hold kind of trading is just the only closest way for me to trade, so it all balls down on each individual and what their schedule looks like during office hours.