Well I'm just going to be excited your back :)
I get what the folk are saying about 90 days, I do. Could sound like a loop hole there but of course I have no idea on what better looks like for you so am going to chat. Would you feel better in 90 days, well yeah. After 4/5 days, the cough goes, you realize it was superbly annoying so you'd feel better for that. All across the first couple of weeks cilia in your lungs is shaking off tar, (literally tar) and your deep breath changes, thus enabling better breathing, nicer sleeping and you feel much better for that. Even the thoughts have changed massively at 90 days, they are very very different to the powerful thoughts of early quit but some, well some triggers haven't been met and faced yet. So I guess it depends on your judging. However reading between the lines this may well be your way of not letting a forever quit overwhelm you.
One day at a time is enough. Most of us believed we loved smoking, it was our only sanctuary, our only vice, it's not like I spend on anything else, I've known 90 year olds who smoke....any of this sounding familiar? Yep, I did all of those and more :) It's ok to be scared. We are addicts you and I, that's the part you've really not taken in Iam but you will, of that I have no doubt. You are a clever fella and once you have some time under your belt the battle gets less and less.
You're also not seeing the good bits. But again, you will. Be excited, be scared, do the pledge, one day at a time. No over-thinking. Getsome plans in place to distract yourself when you will get those craves and then triggers. Fruit juice to cleanse the body of nicotine, the faster we get that out the easier it is to know you are only dealing with mental thoughts and triggers. We will walk with you.
xx