@Kazza,
Welcome back ! @Vivianne is right....why wait ? Waiting enables anxiety and fear and a change of heart.
Decide to quit and quit. Then read all you can, even if you think you already know about nicotine addiction.
The information needs to be embedded in your brain, leaving NO room for relapse.
You can build yourself a strong and sturdy quit, put the work into your quit. Invest in Yourself. You deserve to be Free !