Trading is just a secondary source of income. Your job should be still the primary source of income because trading is too risky. You don't know if you can gain profit because of market volatility and also if the coins you choose to trade are good and can give you the luck to earn profit.
Trading has a huge risk for us to leave our jobs for it. We can have it as our part-time job if we seek extra income because the earnings here aren't guaranteed compared to having a regular job. The market is hard to deal with because of its volatility and for us to do trading successfully, we should be knowledgable about what we're doing. Having a permanent job is too important for us to have a regular income.