At one point I didn't think I was ever going to be able to complete this challenge due to all the glitches, but I did! Yay! lol Didn't do as well as I would have liked mainly, I think, because I messed up with my strategy, which I realised around week 9 - oops. But anyway, here's my score:
Careers: 7 (7000)
Carrots: 15 (0.75
7000 X (1 + 0.75) = 12250
Haha, that puts me dead last, oh dear, good job I'm not (too) competitive! lol