You’re an ISTP, like Brian, by CS Joseph’s RU-vid heuristic. In the statement “that’s why Brian loses all of his races, he works em too hard,” you led with an internal true or false judgement (Ti, or introverted thinking), making you either an ISTP or INTP, and attributing it to working them too hard is a responsible attitude towards Brian’s sense of duty and how the comfort of others effects their physical performance which is extraverted sensing (Se) auxiliary/parent (I learned almost all of this on RU-vid without a non-disclosure agreement, just after the song Ludens by BMTH came out, so I’m allowed to say this).
