Congrats on getting away from smoking, and thank Blu that it was a step away from it and introduced you to e-cigs and that there is an alternative that won't drive you up a wall. That said Blu is a great introduction but in my experience it won't just be that satisfying.
The way I understand it is although 9 as previous poster said) you can get e-juice in canada with nicotine in it Blu can't import it so you get stuck with the 0 mgs, which for a smoker is not and exciting alternative. Blui is not a total loss for you, maybe in the short run but later on when you are less confused by what is this and what is that you will find was to adapt it to your way of vaping.
To be every honest, and I am sorry that it cost you so much but while Blu is a great introduction to e-cigs it can be expensive keeping it in refills (of course you can learn to refill your own but probably not on day 1), not as versatile as other PV's (personal vaporizers) and may be far from as satisfying as you need to really make the alternative switch to vaping, not get feed up with vaping and go back to the analog.
There is not usually any problem with getting PV's purchased from the US or China or the UK even if you live in Canada.. e-juice is iffy but its available in Canada and there are one or two companies in the US that can legally sell in Canada.
I would advise you to take some few minutes to surf You Tube videos about the Blu and things called cartomizers (the prefilled thinygs) and how that all works, and even how you can re-use those cartomizers with your e-juice which would be. You can also buy some that are made to be refillable and come to you empty to use your own e-juice with.
Go to the info zone here and read some of the facts and the definitions of some of the terms thrown around - so you can put a name to these thingys.
Then spend sometime looking at these videos to get an idea of what seems 'better' then where you were at. When I first approached e-cigs I was 'it has to look like a cigarette and not like I am sucking on a flashlight - I quickly did not care but many people do so thats one personal choice... basically the shape of your battery. Size,shape, whether it activates when you draw or you push a button to atomizer the juice and many other factors are things to think about when watching these videos.
Most of the reviewer are good about discussing those things, showing you how the product works and so on. Some people like the dripping of fluid on the hot coil of the atomizer to get the vapor, while others like the cartomizers like you have with the blu which hold the juice and let it seep or drip down on the atomizer., while others like clearomizers that wick up the juice to be vaporized by the atomizer. Usually with cartomizers they fit into the part that contains the atomizer (the coil that heats up and makes vapor out of the juice) while the clearomizers are essentially a tank around the atomizer in one piece. That is a very uncomplicated explanation but the videos and reading info will explain more. Plus, most reviewers will vape with the PV's they are reviewing and you can see jsut how much vapor is produced. Some people like lots while others don't need clouds of it
So for basic starts you want to decide, in my on just a couple of things:. How you want to do the mechanical aspects - like whether you want to drip a few drops each time or tank up 3 ml for hours of uninterrupted vapes (listen to reviewers because its more then that - many people thnk dripping - while it can get tedious gives a truer flavor experience and so on). The look and feel of your vaporizer - if your only comfortable holding a cigarette look alike or an ego like battery is fine. You may even decide on both - home with the 'big' battery and driving around with the cigarette looking one.
Once you settle , as for now you can change and adjust as much as you want the more knowledge you acquire and the more experienced you get with all the vape stuff, then start looking at reviews for more specific starter kits and so on. Usually a starter kit is available that has everything you need but may not have the configuration you want. Starter kits are just that - for the starter who does not quite get how all the parts interact. It usually comes with a battery, an atomizer and cartomizer or a clearomizer (where the atomizer is part of the container that holds the e-juice), and a charger in a nice presentation box - sometimes with a case. I have seen these run from $25 US to and average of $75 US.
After a bit of reading here and video research you might decide that instead of getting a kit say that has a battery and clearomizer and a charger you have decided you would rather use a carto - ten save money and buy the battery you want and the accessories you want - they can pretty much mix and match.
Unless you are 100% sure after you look at stuff for a bit that you know exactly what is the perfect set up for you and you won't ever change your mind and any future purchase will only be when one where out - don't go highest end or the most expensive (most expensive is very often not the best). A good basic ego battery with accessories is a good start, and as you get used to real e-cigs you can then make determinations about what else you want to spend money on.
The first rule of vaping is always have a back up for yur backup for your backup so that regular cigarettes are not your backup. Your Blu, especially once you learn to refill it yourself with e-juice you want - would be a good backup but a good basic battery is great to start with and if you move up then it can be there as your backup and what you use when charging the other and so on.
There are some good Canadian vendors online and I think many are listed in a Canadian forum and a friend of mine that buys in CA suggested you look here
Our Most Popular Kits as the site is not overwhelming with stuff and prices are good, and they have starter kits you can configure yourself with the piece you want.
