I'll help you: don't do it. Playing around with diluted nicotine is a dangerous pastime that could result in your death if you really are a novice thicko as you put it.
The stuff is easily obtainable and is often found to be adulterated when bought from dodgy places. PG is dodgy stuff to work with and pure vegetable glycerine has its problems as well.
You'll need measuring equipment close to the standards used in labs along with protective clothing and face protection. This lot will cost you a pretty penny. Be warned, liquid nicotine is a lethal nervous system poison that doesn't give you a second chance - it's best if you are single with no dependants and have made sure your affairs have been put in order before you play about it.
There is no way on earth you can make an accurate mix outside a laboratory no matter what BS you read on the internet. Get the mix wrong and the consequences are grim.