I've been trying to quit for the past 9 days using Njoy Kings. I just smoked a cigarette for the first time. Iwas lovely. And I feel guilty and bad. Damn this is hard.
Do not beat yourself up over liking the cigarette. Every cigarette you don't smoke is an accomplishment, but that doesn't mean that having one is an unspeakable thing. I think going nine days without a cigarette (with just a cig-a-like to vape on) is
incredibly good.
I've quit now, but I started vaping with no intention of giving up cigarettes, I was just trying to cut back on my smoking expenses a little bit. I tried the disposables and cig-a-likes first and I found them to be very unsatisfying. I didn't like the flavors and I didn't get enough nicotine to even curb my cravings, much less get rid of them.
After a couple of weeks I decided to give an ego style battery a try, and I am incredibly thankful I made that decision...the difference was stunning. I got several different flavors of juice with 18mg to 24mg of nic, and I loved all of them...except for the tobacco flavored one. I slowly stopped reaching for my cigarettes over the next two weeks, and one day I realized I hadn't had an analog in three days. On day five I tried to smoke an analog...it tasted like a dirty ashtray and I hated it so much I couldn't even finish it.
I'd highly recommend you try a volt or an ego style battery with a clearomizer/stardust or a Vivi Nova tank. The cartridges that come with a joyetech eGo C kit are okay but they tend to leak and can be complicated; for me, the clearomizers and Vivi Novas are much easier to use.
I also recommend that you try a few flavors that are not tobacco based. Many of the flavors I thought I would really need or love I actually can't stand. My favorite flavors (so far) have turned out to be English toffee, honeysuckle, red licorice, cinnamon, cotton candy, and a banana one that tastes like banana laffy taffy. If you really want a tobacco based flavor I'd suggest trying a Ry4 type flavor, because that's the only tobacco one I've tried that I actually liked. Taste is subjective, but don't give up...there are hundreds of flavors out there to try.
You could try some 24mg or 36mg nic juice too. The estimate is that we only absorb about half of the nicotine in our vapor, so even if you vaped 1ml of 36mg nic in a day you'd only absorb about the same amount of nicotine as smoking one pack of full flavor analogs.
I know this was kind of long, but I hope I was able to help. And, again, do not beat yourself up...you are doing really well and you have nothing to feel guilty about.

Good luck!