Root canal treatment have 3 sittings but it can be done either single sitting or 2 sittings depending on the condition of your tooth (Diagnosis).
Next Steps
visit your dentist and get root canal treatment done. even if you do not have any complaint after first sitting
Health Tips
after root canal treatment chances of fracture of tooth is more. it is advisable to get crown. you are young and need to maintain your teeth for long time.