The practice drift course has a corner for every speed in the first three gears, so I probably had an easier time than most.
I too got greedy and dropped a big chain. Time is not an issue, it's managing the deteriorating tyres when you eventually do bank points, and hopefully you have enough to reach the next level. My first chain was 17k points, lel.
Next time I'll do something challenging like Highlands Drift or something, I dunno.