Cryptoworld is another name of financial freedom,You are here own boss and can choose own working hours and here you work for own.If you have skills and knowledge you can earn more than your tradtional job.You can do both same time but its all about priorties if crypto is passion then good decision to leave job.
Doing both work at the same time I think that is the best option. Trading in the crypto market does not take too much of our time, we can completely control the time spent on both jobs. The traditional job is a stable source of income, if we abandon it means we are totally dependent on the trading. and it is inherently unstable.