Mike sent me a PM asking some questions but I want to answer him here in case some other people reading this thread might be struggling as well.
There are several factors here and what you need to do is turn this thing around for you. I'm going to go over these in terms of what I feel are the least to most important, although you need them all working for you if you are having trouble. Some people just get their first kit in the mail and throw the smokes away and never miss them. Others have a much tougher go of it. I was in the latter camp and struggled for 14 months trying to switch to vaping. So here's some of the things I learned.
You mentioned using the right PV. As people have mentioned, being able to find the right power settings is important. If you are on a budget then the ego-c twist is fine and definitely a step up from the Bloog.
Next, you need to open your mind toward what you are looking to do here. It is not to replicate the taste and feel of smoking as closely as possible. The reason why smoking satisfies you isn't because it tastes a certain way or the smoke feels a certain way.
So the first thing you need to do is open your mind up to what this should taste like. It sounds like you are sticking to the tobacco tasting juices. You want to try some flavored juice, for some people like myself the flavored juice works better. I can't get satisfied with a tobacco flavored juice for instance. As your vaping experience progresses you should be experimenting more, and as time goes on, get a better idea for what works best for you.
The next component is nicotine level. Someone mentioned 24 mg. That might not even be near enough for you. If you need 36 mg to quit, you need 36 mg. That's what I needed. So you want to open your mind to this.
The biggest thing though that might be holding you back is that you are addicted to more than nicotine, you are addicted to tobacco. So vaping regular juice only provides the nicotine. I've talked to people who have been vaping for years and some say they never really are as satisfied as they were smoking, but that's the price they pay, but this is something I was never willing to do. When I quit I vowed to try this and if after a reasonable period of time I didn't feel completely satisfied I was going to go back to smoking.
After 4 weeks of vaping and not smoking at all I was not satisfied. I missed the calming effects of a cigarette. Fortunately I had ordered some WTA juice from Aroma and although they didn't ship to Canada I managed to talk Jerry into sending me some. Now they say some people don't need it but I am not one of them. This made a huge difference to me and I am now completely satisfied vaping that and in fact this is more satisfying than smoking, completely relaxed with all the nic and other things I want.
Finally, even with all of these things going for you, you are going to need some will power, or at least you might. If you do, then you need to bite the bullet. When you quit smoking, you rid yourself of all sorts of toxins that have built up in you, and whenever your body detoxifies it's no treat. So you need to realize this and be willing to go through it. After a few days though this does mostly pass and if you have enough resolve you will make it.
Another factor in quitting smoking is that tobacco is a mood elevator and when you quit it you need to replace this with something else. So I'm a supplement nut and I've added some St. Johns Wort and SAMe, both natural supplements that are good for you anyway, and will generally make you feel better whether you "need" them or not. Make no mistake though, when you quit smoking you need something here.
So to sum up, some people are able to quit easily and some are not. For my money though I want everything going for myself, and in fact it took all of this to get me through it all. I started smoking in 1978 and by the time 1980 hit I was hooked for life, and all attempts to quit failed miserably. I am now very happy to say that I am not only a non smoker, but one that is completely happy vaping and under no circumstances would ever take up smoking again, not because of health concerns but because I have found a much better way to enjoy tobacco.
Best of luck man!