hi, i used to wiegh 155 too, but now im 143 lbs. Im 5'5', now cuz your taller your supossed to weight a little bit more, but i can offer you some advice thats been working for me. I eat very healthy, 3 square meals, the food bar of this section helps me decide what to eat and what not to. Tons(8 glasses) of water, water is the way to go. As for excercise i do Tae-Bo w/ Billy Blanks, it rocks! My arms are starting to get skinny and have major muscle definition, every part of your body slims down. I think you can get his tapes at any major video store, good luck.