I have a few tips to help you get the most out of your ecig, and hopefully help you squash the urges.
Ok firstly, when filling up the tank, always remove it from the battery, otherwise the pressure makes the liquid leak out.
When filling it up, try and do it slowly so all the liquid runs down the side of the tank ( the inside obviously lol) and none goes down the little hole in the middle, as this is where the heated element is, and if the liquid goes in there, you will get a gurggling noise, you can burn it off, by just pressing the button to allowing it to heat up.
When charging the battery, always get a cotton bud and wipe out the bit of the battery that connects to the charger, you will notice that a little bit of liquid sometimes leaks out. NEVER charge for more than 2 hours, to get the best life out of your battery, also for safety reason too.
Check that you are using the right level of nicotine in your liquid,I only use sociallites brand, so can't comment too much on others, but I used to smoke 20 benson and hedges gold a day, and I am on the 2.4 or 24mg nicotine ( the highest they do ). Another member called sinfree found an article that suggest we only get about 50% of the nicotine that is in the liquid, so maybe moving up to a higher level to start with until you have dealt with the habit side of giving up the real fags might help.
Oh when the wick is getting old you will notice that the liquid starts of clear but quickly goes a very dark yellow colour, it is time to buy a new tank, also it starts to taste like burning rope...because it is lol!
If you want to save a bit more cash, you can take the top off as if you were going to refil, and sweep the tank in warm water a few times, shake it and repeat, until the water coming out is clean, then dry it on the window sill, once it looks dry connect it back to the battery, and keep pressing the button ( 5 second bursts ) to heat up the element, smoke will come out, keep doing this until the smoke stops. then the tank is dry enough to use again.... its a long boring process, and as you can buy 10 tanks on ebay for 7 quid. I just replace mine lol! - also i am sure this is not to good for the battery but my friend does this.
I have moved up to a stronger battery, 1100 instead of 700, this has helped me when I drop my nic level, as I struggled on the smaller battery.
Tell yourself when you get the urge for a cigarette, that your ecig has the nicotine you need, and puff on that first, wait a couple of minutes as you don't get the initial hit like you do from a real ciggie. Hopefully the desire to have a real one has passed.
Stay strong you can do this x