I quit smoking 5 years ago. do the chances of getting any smoking related cancers go down since 5 years ago when i quit?

Congratulations on quitting smoking! One of the best decisions you ever made. Yes, the increased risk of cancers does the crease the longer you are free from tobacco. The CDC has a great summary page on this. https://www.cdc.gov/tobacco/patient-care/care-settings/cancer/index.htm#:~:text=After%20cessation%2C%20the%20risk%20of,%2C%20esophagus%2C%20and%20kidney%20decreases.