You have to be careful to spend some quality time for crypto currencies and trading or mining or whatever and still to have your own old job back. That job will be your first source of income, your stable income, and your base. You should keep the balance with those two and keep in mind that it is best for you to have them both.
Well, both are still the choices of everyone but I still encourage people to give priority to the main job and any other work related to crypto should be located behind the main job, it will help us maintain a state of life at a stable and long-lasting level, without too much sudden change. The reason I have this thought is because I have seen too many friends, even myself, falls into a colorful and wonderful picture of the crypto, and wanted to be the main character in the picture, I gave up the job around and what I got was just disorientation in the future, the future path seems to be closed when I consider crypto a full time job