If it was so easy to make a living with bitcoin, with all the time years that it has existed, then there would not be any poverty. Because being poor drives people to try anything and everything to try and earn even a penny to live.
I do not think that it is possible to earn a living with Bitcoin because to make that possible yo will have to invest in allot of Bitcoin.
You need money to make money and most people who make use of Bitcoin do not have all the money to spend on Bitcoin.