It took me 6 years,and a lot of lowering nicotine strength. I haven't touched my vape in a year now and still have a box full of vape liquid.
Vaping made it easier to stop when nothing else would help. The laws that limited flavors and sales would have hampered my efforts, buy I was lucky enough to have fully quit when they finally came into effect.
I'm really digging Liftoff on Android. Simple and painless.