Newbie and need advice please!

Hi all! Thanks for allowing me in!
I’m a little stuck re. Coils,juices ,wattage and the rest! I bought a voopoo drag recently which is great and came with a free bottle of 6mg juice of my choice (blueberry) I’m finding unless I use it at even at 5 watts it’s catching the back of my throat and makes me cough.
I want to give up smoking but finding it easier to light up and smoke than vape.
Any advice you all can give would help.
Thanks!

Original source: https://www.e-cigarette-forum.com/threads/newbie-and-need-advice-please.968501/