As-salamu alaykum
With a view to share some thoughts:
Immediately stop the action that you know is a sin, seek to redress the situation if you can, directly or through charitable causes and plead with God with sincerity and consistency for His mercy. Only He can forgive you. Never repeat the sin again and attempt to lead a righteous and spiritual life going forward. Read the Quran constantly in a language that you understand so that you can receive sound instruction, God willing.
Only God knows best what is in your heart and your intent.
Regards,
Joseph