NONE of the people I know who used e-cigarettes were able to quit for good.
Here's my recipe:
1. Quitting sounds hard but it isn't. The majority of people who try to quit, actually succeed. 2. Don't use ANYTHING as a substitute (no chewing gum, no patches or e-cigs). Substitutes usually can never replace the original and will just keep you "hooked". 3. Read affirmative stuff (like news stories, studies). Reading about a study that showed most people quit for good, actually helps. As does reading about the consequences for continueing to smoke.
That's it. Just quit. It's easy, you'll be off cigarettes in no time.
Everyone can do it. Smoking is totally a 90s thing.