If I got 99.90 then I would have done medicine but now I will do what I am truly passionate about and stop chasing the "dream" of becoming a doctor.
I won't by any means tell you what to think, but I feel like that's the wrong attitude. You should never stop chasing your dream, and if your dream is to become a doctor then there's no sense in giving up, especially now that you're only
just starting tertiary education. Giving up on studying and practicing medicine would - in my eyes - be akin to giving up on VCE on the first day of kindergarten; you have so much time and so many opportunities to do what you want to do over the next few years, and a BSc is a perfectly adequate entry point to study medicine after undergraduate study.
The same can be said with everything else, follow what you're passionate about - but don't forget that things change over time and you may end up wanting to do something entirely different.
tl;dr: Don't give up
