I smoked for 40 years, anywhere from 1 PAD to 3 PAD depending on the decade and environment at the time. When I tried my first e-cig I found an e-liquid that had a taste as close to my brand as I could possibly have hoped for, however, I found it too harsh and unsatisfying too. I started with 18 mg in a 50pg/50vg blend. What worked for me was to change the pg/vg ratio and up the nic. I changed my liquid to 24 mg at about 30/70 and it hit the spot!! Less craving, much more vapor, and a more pleasant TH. I FELT like I was smoking.
I also had to change a few habits . . . especially after mealtime. I would make an event out of sitting back with my PV and really making an enjoyable "after-dinner" vape out of it. A couple of weeks later, in the height of detox, I had about 2 days of craving, but my last pack of analogs was, and still is, in my frig and knowing I could smoke an analog anytime I wanted to, gave me the comfort not to. I haven't had a craving since and I have reduced my nic back down to 18 mg without changing the pg/vg ratio. I've tried changing up the flavors, but unsuccessfully. I still want the tobacco, menthol, with a touch of cocoa flavor.
Take time to think about what it is you're missing and then see if there can be some adjustments made to your vaping experience to get you covered. It sounds like the TH and peppery taste of the nic would be the place to start, but look further. And as everyone has said, if you smoke one once in a while, oh well . . . think of the ones you didn't!! It will work out . . . just take your time and move forward at your own pace.
Best of luck!!!!!!