But how do I start the new job? I still have my old job, and I'm afraid to quit until the background is done, is this wrong? Should I just go for it? I get ho

But how do I start the new job? I still have my old job, and I'm afraid to quit until the background is done, is this wrong? Should I just go for it? I get how people without a job can start, but how do I start? Feels risky to resign from current.