In Jainism there isn’t a fixed number of times you must pray to “cancel” a sin. The path is about sincere repentance, vow to refrain from the mistake, and restoring right conduct.

What you can do now:

• Do a short pratikraman (confession) to acknowledge the fault, ask forgiveness from all beings you may have harmed, and resolve not to repeat it.
• Say the appropriate forgiveness (micchami dukkadam) to those affected, with genuine humility.
• Renew your vow to practice ahimsa (non-violence) and follow a stricter ethical course going forward.
• If possible, engage in a simple act of penance or self-control in the days ahead (like mindful eating, more restraint, or a small fast if you are able and it’s appropriate for you).

Key ideas to keep in mind:

• The focus is on sincerity and change in conduct, not a numeric tally.
• Digambar and Shvetambar traditions both emphasize pratikraman and seeking forgiveness, though the wording and rituals may vary slightly between the two.
• Regular practices like samayik (meditative equanimity), more mindful eating, and ongoing vows strengthen progress beyond a one-time prayer.

If you’d like, I can share a brief, traditional pratikraman outline or a simple, respectful verse used in Jain practice.