Will these self harm scars ever go away or at least become non-noticeable? (Photo)

I decided to self harm on my upper left arm about three months ago. Most of the scars are extremely thin and I can barely even see them myself. There are 4 specific scars where I cut a bit deeper, but not extremely deep. I bought silicone sheets as well as applied Vaseline to the scars for about a couple weeks. The scars are not raised but they have gotten darker in shade. I started applying the silicone sheets again, but idk if it will be enough. Any answers would greatly help.