Never give up trying....!
I am going to get a PT to motivate me at home. I am far too ashamed to go down the gym or even for a walk and need someone to help me start exercising slowly and correctly. I am so unfit its scary.
I would be really interested to see how that goes as I feel exactly the same ! The cost of it has put me off even though I don't have a clue how much it would cost. I could cope with a nice friendly trainer but wouldn't want some honed, perfect bod turning up !
To be fair most personal trainers are going to have a good body. In order to be credible, you have to look the part as well as know your stuff (not looking the part suggests that you either don't know your stuff or don't believe it enough to follow it yourself - like being a skinny chef ).