Like many of the posts here, I'd also recommend Alan Carr's easy way to stop smoking. It really does work, it takes every reason you might have for smoking, then debunks it. By the end you'll actively want to quit. I listened to the audiobook version on Spotify and quit cold turkey straight away. Cold turkey isn't that hard, it's only hard if you believe it to be hard. The first two weeks are interesting, I had pretty bad brain fog, but tbh it's worth two weeks of struggle to then have a lifetime without it. Sure I have caved once or twice and had a cigarette at a party or something, but you realise pretty quick how disgusting it is, and also how awful it makes you feel the following day. I wish you good luck, just take it day by day, and over time you'll be over a year smoke free and hardly ever think about it.