Ah, you bought a mech mod. Using those safely, as in not blowing you or your home up, requires a fair amount of knowledge and experience. My suggestion would be if you want to start in vaping, buy an inexpensive regulated mod like an iStick or Pico (comes in a kit version with a tank) so you have somethnig to vape on while you spend some time here reading up how best to vape safely on the box you just bought.