for me having a stable income is to have an proper and arranged inventory and a proper handling of money so you wont just waste money for nothing. hope it can help
That can only happen with a daily job or your own business and that can be procured only if you work hard and have determination, skills to start one.
Like I always say there is no easy way to make money and there is no "best" method to make money. We all earn according to our skills - no job is superior to another.
Of course there can be failures in trying to start something new but thats what savings are for, if we have saved money we can always give it a new shot and may as well work it out.