Day 40, first time making it this long. Could some veteran give me an advice?

Hey there, I'm 21, been smoking around 30 a day since 16, plus some 50mg nicopods, like ten a day. I quit with cytisine 40 days ago, threw away the cytisine 20 days ago. Not smoking is not difficult to me, I go to a pub once a week where people around me smoke and I don't mind. Sure, I have the taste for it, but it's disgusting now, and wanting it is even more disgusting. I'm firm on my stance that smoking is not worth it, I don't want to have to quit again, I don't want to lose that money again, I don't want it to always be on my mind, I don't want to feel like shit again. Just not worth it, don't even want it. I've been quitting every 14 days for the past 2 years but never lasted more than 5 days before. Then I got sick of it, started to hate myself for it and quit. Can I hold onto this stance or should I change my behaviour/mindset in the future? I know that I'm really done with the "just one" thought. Is there anything else to worry about or may I be in the clear? I'm pretty sure I'd not pay for a pack right now and my friends would discourage me from "borrowing" one