your lines weren't terrible. it just takes time and some good instruction to get quicker and quicker in any application.
i personally always had issues my first couple of times out on long track. braking into kolb corner i was always braking early and loosing a ton of time there.
getting out of turn 1 into the Esses quick is a big one. getting on the noise and getting out quick is an awesome feeling.
EDIT -
https://www.youtube.com/watch?v=Wxq4...ofKlTQCZxHAqBg
Check out Marks Videos. His car is stupid quick but lines are awesome.