Depends on the mistakes, some things were mistakes in hindsight, i don't feel bad about those. some mistakes are made because people lied, cheated or otherwise giving me wrong input, then I won't feel ok, these where not really mistakes. Then there are the mistakes I my self make, I'll try to fix them my self, sometimes other people need to clean up my mess, I'm very sorry when that happens. I apologise profusely but I also know my skills were not up to the job and I need to do better next time ( if I get the opportunity). I mostly (over)think before I do so I won't make very obvious mistakes. occasionally I do make mistakes due to being lazy, it bites my ass and I have to solve the shit twice. and because im lazy as hell, I really really hate doing things twice.