I first started vaping in 2009, but due to really bad hardware in those early days, combined with a 32+ year analog addiction, I constantly craved a smoke. It wasn't until the Ego-T came along that I successfully made the transition to vaping (September 25, 2011), and I required 24mg eliquid to do it. I haven't had a real craving since then. I still vape, but the nic level is way down. I DIY @ 4 to 6 mg nic, but also have a 'standby' tobacco flavor at 10 mg nic. If I go to a bar with friends, I up the nic.
Strange though, this year I've had several dreams about smoking. I could 'feel' it til I woke up. Still didn't have a craving or desire to light up afterwards, but those dreams have me puzzled.
Hang in there, because it WILL get better...and up the nic if you need to.
Final thought: I had to go in the hospital for a few days back in 2014. Never even thought about vaping while I was there, and ZERO withdrawal symptoms. If I wanted to quit vaping now, I know I could...but I still like it.
Good luck!