I agree with you, learn stuffs about economy first because bitcoin and cryptocurrency is just a part of it. Actually, it's not necessary to study every single detail about it (but it would be an advantage if you do) because knowing its basics is enough.
Going back to the topic, Bitcoin is my main source of income (believe it or not) because I'm still a student and this is the only way I found to earn good money. Bitcoin greatly approved my kind of living but if ever I already got a stable job after I graduated, I will not prioritize it more than my job. I will just set it as an extra income whatever happens, even the money I earned there is greater than my salary because money is not the most important thing in life. Finding your self worth which you can find in your job is priceless.