Im a newbie!

Hi! I dont know if this is the right group, but i am 28 female, i am 1.58 and i weight 57.6 kg. Overall i dont look very fat, mainly my belly and my arms are a bit more thick. I wish to build more muscle and lose some fat in the areas mentioned before. I dont eat too much, but i admit i fail sometimes at cut sugars or carbs. Im new at the gym and pool and im very lost. I dont take any meds or birth control, my periods are normal and my last blood lab came back with perfect numbers. Any advice on how to start the new journey? Thanks