fourth time with trainer

this morning i had my fourth session with a personal trainer. she made me work hard this time. we did some weights and some cardio. i had difficulty with some of the exercises. i question how all of this leads into me losing weight. i should ask some questions. my body is not used to all of these exercise however i'm doing my best. i'm surprised at times how i'm able to do some of the exercises. i hope i could keep myself healthy and not strain myself out. it's been working well and i do enjoy some of the exercise. i hope i continue to work out. i don't want to be an old man with a big belly like some ppl i know. well i should pray to God for strength at times. rest tomorrow and back with the trainer on friday.