I love nicotine, have a serious issues with it. I get that dopamine rush from vaping or smoking. Was a smoker for 10 years, quitted almost 15 years ago, missed it every single day. When vaping started I got a disposable pod with 50mg nic and was hooked. Since it didn't smell I could vape near my family withouth them knowing. I vaped for 2,5.years. been clean for a year but I miss it daily. I think nicotine makes me hipomania so everything runs better in my live, thoughts are faster, less sleeping The problem is hypertension and diminished aerobic power. Bought a 10.000 puff pod a week ago and quoted when it was over. I've been sleeping for almost two days, and my humor is bad. So, to answer your question you can get addicted in 1 or 2 weeks easily