I don't think that it is a real thing that anyone can tell about your good/bad luck for the particular time because all things are not scripted , It depends upon us that what we are doing or did in the history that is all results into our luck or you can say result that is profitable or lossful for us .
If you will say that gambling may be done by the same thing , then yes , because all depends upon us that for what we had placed our bet .
So instead of working and spent time for luck that is predict by other , you should do your work for better result whether you are working in gambling or any legit way to make money .