You're not alone mate, I was definitely in a similar position to you. Even though I had good SAC ranks, I still used to mentally beat myself up (especially with English, thinking that I fluked all my SAC scores) simply because I couldn't see myself being anywhere near the elite people I used to look up to as academic "beasts" (I never had any academic awards or anything) in yr9-11.
I suppose me being in the homogenius class (you'll know what I mean) didn't help much, as there was always so much competition

Then, looking at some of the geniuses on VN... That compounded things too, when people were like "Damn, only got 45" or the even worse "You are a shoe-in for 99+ mate, don't worry", etc etc
The way I got around it was to: accept that I was NEVER going to be the best but that I COULD reach my goal of 99.15 and that my goal was to NOT beat others but only to beat MYSELF.
That really helped, and from then on, I also stopped bothering to find out what others got on SACs, and it didn't really help or matter to me. I just did my own thing and hoped to reach my goal

edit: I guess it also got rid of any jealousy I may have had for anyone else's scores, a thing I'm really glad to have got rid of as I didn't feel at all bad when helping others (in rl or on here)
