Actually there are things you must consider prior to your present job. Don't take bitcoin as the main reason for you to quit your job. Because as long as you are enjoying in your job and the salary is enough for you then just do bitcoin as source of extra income. It is just a matter of time management if you are complaining that you dont have enough time for you to study bitcoin.
Yes, and even the income from our job is stable as compared to bitcoins. Bitcoins can be handled as a side business but even if you want to make your full earnings in bitcoins, than you have to spend a lot of time.
Bitcoin learning is a lot of time consuming and is not that easily earned. Learning bitcoins does not need any physical work, just we need is a good knowledge about bitcoins and a good earning skills.
Job can give us a good stable income which is of great importance in our financial life but in bitcoins, we can even have major profits sometimes as sometimes luck factor may work in bitcoins. Bitcoins too give us various platforms to earn money like trading, mining, investing, gambling, etc.