Best way to become a full time Forex day trader with a current 9-5 job?

My current M-F 9-5 job is physically demanding, having severe back issues for years (its getting worse) and would like a new career where i wont be damaging my body. Im strongly considering Forex day trading as a new career. Im currently learning on youtube.

I dont wanna quit my current job cause i understand it takes time to make profits from trading. I was thinking to work thursday-saturday (part time) with my current company. And day trade monday-wednesday (hopefully those are great days to trade). Untill i improve and am consistent with Forex, eventually i want to quit my job.

The bad news is trading isn't about who puts in the most work/hours, it's really about who starts with the most money. The deciding factor that will let you quit your day job is how much money are you starting with because the guy who starts with $1,000 and needs to make $5,000/month to survive is facing a far bigger challenge than the guy who starts with $1,000,000 and needs to make $50,000/month.

I know, every YouTube video is like "start with $1,000 and quit your job!" but