5 short questions need help with

Could you help me with these sentences please?

1 I won't have to use up as much of the overdraft as if you hadn't lent me the money.
2 It means what it means. Don't read into it.
3 The windows are ineffective. The room isn't properly insulated.
4 You should be able to assume your position nearly as quickly as you can bring the camera to your eye handheld.
5 She mess with my head more than I did hers./ I messed with hers.

Thanks