How might one fade self inflicted scars?

Improve, not remove. Scars cannot be removed but there is a large variety of techniques to improve their appearance, both surgical and non-surgical. They also improve with time. See a dermatologist or board-certified plastic surgeon to evaluate your options. Good luck!
Options. You cannot erase scars. Poor scars can be improved through the following methods: 1) scar massage 2) silicone sheeting (a kind of silicone tape you where over the scar) 3) steroid injections 4) laser treatment (helps remove coloring) 5) scar revision (removing the scar and starting over).