Hi, I wanna leave smoking, I have started about 10 years ago. What should I do? Sport, drug. Which one is better?

Ignore failure. Motivation to quit is great first step. Discuss with your doctor. Use multiple strategies e.g., nicotine replacement + meds + behavioral approaches. Take one day at a time, and if you don't succeed, ignore failure and try again, and again, and again, until you succeed. Don't let failure sap your self-esteem. If it were really easy to quit, it wouldn't be an addiction. All the best!