Hmmm, have you tried working? Like getting an actual job? I've heard it works out pretty well for some people.
I think he means earning other than working in the usual sense.
Yes actual job matter most because of a permanent source and less risk factor. But I think that if you join bitcoin world along with your job that will be so amazingly great with your financial status. It will be definitely hard to manage but just give it a try and the profits will make you determined for the whole of your life.
I don't think it will be hard to manage if you know how to manage your time, there are a lot of bitcoiners that juggle their time in earning bitcoin and having a day job so if they can do it then we can also.