Can we reset please!

I am really sorry for the mistake I have done. Sadly, I am too ashamed to admit that even though I wanna do something to make up. I couldn't believe I ruined the relationship, which is the part I cherish most in my life. You are literally my close person and the built-up of the trust would never come easily. I know I deserve the torture but could someone just let me know how could I repair the trust that was given to me before. Please please forgive me. Please tell me it could still be repaired..