In my opinion i will choose my permanent job because with my job I'm pretty sure that i will have my salary monthly and if i have the opportunity and will be promoted my salary will increase but with crypto we do not know what will happen and when it will lasts.
I am agree with you at some extent that real job can give you all surely to stay with you and to increase in salary but mate, in future you will realize that your real job salary is not enough to fulfill your all needs properly so according to me it is good to have both at the same time, crypto currency is not time consuming as if you invest then you can carry your job along with it and will increase with time , you will not have to do anything with it, if you are not ready to invest yet then join the signature campaign and earn money from bitcoin in your spare time. So using both is really good choice right now.