Oh man, what haven't I done to quit? The gum, the lozenge, the patch, medication, cold turkey, vaping...I've quit seriously about 11 times, this last one being the longest, actually. I vape here and there, but it's 0.
You have to find something to help you not only physically, but MENTALLY as well. The act and physical addiction are both very easy to quit, however, the main trigger for wanting to smoke is emotional and mental. You're stressed? You smoke. You're bored? You smoke. You're having the worst day ever? You smoke. So you need to 1. Discover your biggest triggers for smoking and 2. Find something else to fill the void. You can get help to wean yourself off nicotine, yes, but more often than not, people start smoking again, not because they are addicted to the actual nicotine, but what it represents; calming, soothing, something to do, etc.
Don't feel ashamed if you call Nicotine Anon, go to group therapy, anything like that. It can really help a person figure out why they smoke in the first place and how to break the cycle. Along with my occasional vape (I started seriously about a year and a half ago with 12mg, then when to 3 for a while, now 0), but another mental thing that helped me was being in competition with myself, just to see how long I was able to go for. I challenge myself every day to not light up, to add another day without a cigarette under my belt. I am now 486 days without a single cigarette, the longest I've ever gone. Got the idea from my cousin, who had a competition with his roommates to see who could quit the longest. He's still winning, LOL.
So that method works for me. It may take you several tries to see what works for you. No one can make you quit but YOU.