You' ve been around the block a couple of times.
"been around the clock""精通,有经验,是个老手"
eg: Let' s ask Justin how to deal with this situation. He' s been around the clock a few times.去问问Justin怎么处理这种事,他非常有经验.
I' ve been around the clock a few times.I know what I' m doing.我已经做过很多次了,我知道我在做什么.(别对我指手画脚的意思)