I don't smoke but my parents did. And I hated it. They finally quit using e-cigs. So good for you! Just stay away from the flavored ones. It's basically food artificial flavoring that was never meant to be inhaled. It's as dangerous as a real cig doing that.
You can also wean yourself off nicotine entirely by get smaller and small doses. One guys I know said in the end all he needed was just seeing the "puff of smoke" to relieve his stress. Eventually he didn't eve need that.