We have very similar stats!!!! You're a kilo lighter than me though!

I think it depends on the trainer. Personally, I've had a few, and one was terrible (I reckon I knew more than she did!), One was *too* brutal, I don't react well to negative feedback, and one was absolutely brilliant! Unfortunately she doesn't train anymore The ways she helped were:
*Having an appointment to keep- I don't like letting people down
*Paying the money- I'm sure not going to waste an hour I've paid for!
*Guidance on when to amp it up- I may not have had the confidence otherwise
*Keeping a 'scorechart' of measurements etc- something to refer to so I could see my progress.

At the moment, I'm too far out of town, and it's too expensive for me to justify getting another trainer, so it's walking and diet for me!!! But I'd get another one in a second if those variables were gone!!

Good luck!