off on the right foot
From a positive or favorable position, especially at the beginning of something. In an effort to get off on the right foot this semester, I've already begun doing research for my thesis. Make sure you're on time and dressed professionally. You want to start off on the right foot on your first day of work.
*off on the right foot (with someone or something)
and *off to a good start (with someone or something)Fig. starting out correctly; beginning something carefully and cautiously. (*Typically: be ~; get ~.) This time, I want to get off on the right foot with him. I tried to get off to a good start with my new job.