I am currently struggling with the idea of going back to vaping, having quit 3 years ago following covid, because nicotine has consistently shown to be a strong drug for fending off parkinsons.
https://scholar.google.com/scholar?hl=en&as_sdt=0%2C31&q=nic...
Then I got diagnosed with ADHD, got stimulant meds which restored the energy and then some, and it was clear I had been self medicating all my life with nicotine and I was completely lost without. If one day I lose access to stimulant meds, you better believe I'm back on the patch and/or the vape.
But in general dude, do not joke about nicotine. You are 3 years clean, it's incredibly hard to quit. If you done it once, it doesn't mean you'll do it twice. Maybe avoiding Parkinson's by vaping is a terrible excuse. You've never known addiction if you believe this time you'll be able to control it.