Well, since you "just started vaping", I'll start with the very basics first:
1. Did you give the stick a full charge before starting and charge it completely when drained?
2. Are you sure it is on, that the light around the fire button lights when pressed?
3. If it lights up while pressed, does it flash 3 times (I think) when released?
4. How long have you been hitting the coil it came with and if you have changed it, did you put in an M-2 coil?
5. If you have changed with an M-2 coil, did you prime it well before firing?
Sorry for such basic inquiries, but sometimes it turns out to be something simple. And please report back if you figured it out as that may help others with the same problem and will help those of us trying to help!