Try to have a nice job with high salary, and owning some business and with a little extra time on bitcoin , to have some extra income . With this you can increase your chances.
That is a good suggestion. it is better to earn the bitcoin as part of the salary. That is more secure and constant cash flow.
Well it is really hard to get a nice job that pays high. Because before you are going to get a promotion or a position that pays higher than your expectation is really hard to reach unless you are really a skilled person and you have what it takes to deserve it. But having one source of income is not enough to be rich you must also be an entrepreneur.
It depends on your skills and abilities if how much money you will get from your job, the more skills you hold the higher position jobs you will get, and if you have some extra skills like programming, web designing etc then you can use them online as well to earn some extra money in free times.