Alright it's over. Honestly, fuck this game. What a load of bullshit. It's downright laughable that none of the last 6 attempts even managed to break 1k speed, with a 4speed deck. What a sick joke.
You know that +35 double speed rainbow that I failed? That was the best speed rainbow I saw this run.

At least it's over now. My belief that there is a hidden mechanic to make your rng massively worse after the first 2 days of trying to make a racer with a trainee has only hardened. Definitely taking it easy for the next CM and spending 1 week at most on it.