Don't rush, there are no rules. Most important is that you feel comfortable (or as comfortable as possible) . Don't risk going backwards to cigs. Having said that, one of the great things about vaping is that it is easy to jump right back in if you fall off the wagon. I am a year in, ihave juices at 24/18/16, well all levels. Most of the time I cant tell the difference. Good luck and happy vaping.