Congratulations, you must be so strong to last that long, and not to give in to feeling so triggered.
I know what you mean about scars fading, when mine do I feel like I've lost a part of myself, but then I think about how it's a negative part of myself, and try to imagine all the bad feelings I get fading away like my scars. I know it's cheesey, but it stops me feeling so weird about it. Also, you don't have to worry about hiding away from everyone anymore, and you wont have to make up any more reasons as to how you got them.
Congrats again, and good luck for the future.