(Concern) Can I really quit smoking??

Lately, I’ve been feeling strangely suffocated and have had a burning sensation in my stomach. Just in case, I didn’t smoke for about a day, and it seems like my symptoms are improving, so I’m thinking about quitting smoking. I’m really worried whether I can do it since I’ve smoked for a long time, and I feel both regretful and anxious. If anyone has successfully quit smoking, please give me some advice. I’m also considering going to the health center to get nicotine patches.ㅠㅠ I feel upset because I think I have weak willpower.