Welcome to day trading. I dreamt about day trading 4 decades ago. I read hundreds of trading books, attended tens of trading courses, analyzed thousands of charts, and worked very very hard. I am a day trader since 2 decades ago. Day trading is actually the hardest profession.
I had a friend who left Goldman Sachs with 4mm to trade on his own. The first 2 years he made 2mm each year. The last year he lost 2mm and went back to work. Wanna know why? LONG TERM DISABILITY.
I would never toss away an income earning job for an endeavor that 98% fail at without a quantifiable edge. Being nervous is probably the perfect human response in such situation.
Delighted when you do well and disappointed when you don't, those are fine. Excited and nervous? --Recipe for disaster.
I mean, if your job is secured, then that's probably best to stick with and keep trading as a hobby or a part-time, til you are so sure enough of leaving, if you are able to make good money.