How can I work in a Resturant that serves haram food and alchol during ramadan without hjab?

Im a convert to islam and before I converted I worked in the resturant. I get good money because of tips and in any other job I know i can not make this. Ramadan is coming up and I have told my work i cant do it during ramadan and am still waiting for their reply to this. But I am also thinking in I am going to spend one month in full submittance to Allah then how can I go back to this job after that I know that the job is not good for me but I just need some more advice on this from other peoples opinions. I know islam is not part time.