my opinion it's possible if you have more skills to earn money about bitcoin is enough to leave your regular office job and steady for regular bitcoin job to focus what you want you choice
The only prerequisite for totally depending upon bitcoins is that a person must have what it takes to earn bitcoins. He must be skilled enough to earn a good amount of bitcoins and it is not a very difficult task. He just needs to understand the nature and working of bitcoins.
Yes, your right It needs effort , time and focus to learn the process earning bitcoin. That's why I am willing to learn and keep on reading of the post, If I dont understand , I just read again and ask questions to you guys.