If you believe in crypto than your current job, then take a lesser job to enable you have time to manage your portfolio effectively.
You can as well set your sell or buy, or possibly engage in long term investment in order to have control over your job.
In a nutshell, proper management of portfolio requires maximum engagement of the owner, and good knowledge of the market.
That's just too risky man, beside there are many portfolio management app that are automated and will alert you at certain point or event you don't need to spend that much time to be able to manage your portfolio properly to be honest. beside it's his job right now that could give him portfolio or in other word money. quitting job like that is just a bad idea and there's no guarantee for a job with less time.