Have you read gwern on nicotine? Particularly, in this case, regarding MAOIs in tobacco, so I suppose the hop through gwern isn't entirely necessary, but it's where I first heard of this, anyway.
Step by step, I feel like it might actually stick for real this time. Every time I started up again in the past was contextual (eg a break up, out for drinks with friends, have a half drunk smoke and I’m hooked again). No longer have any smoker friends, no longer have significant drama in my life, hoping it’ll work out.