Go to youtube and type in e-cig reviews as well as refilling e-cigs there is a ton of info there to get u started. I have been using my unit for a day now and I like it alot. Iam aswell filling my own carts its the best way to go. When u r at youtube type in your model that u have and it will show u reviews and possible ways of refilling and mods. I was given a e-cig as a gift and of course Im grateful, but I got the one everybody tells u to stay away from which is the smoking everywhere gold model. Happy to use it to c what it is all about but on a preformance level its not consistance. Looking foward to getting a Joye 510, battery life on this model sucks, but the vapor is the best from what i c. Good luck w your new adventure and GOD BLESS.