Arms💪🏼

Ik that this is a stupid post lol, but htf do I get my arms to be more thinner more quickly, like I want to lose atleast 2-3cm, I’m already going to the gym, n re-starting my “calorie deficit” again tomorrow or on Wednesday, but that’s always been the one thing that I hate about my body lol, like yes ik that people say that you can’t just loose fat in one spot lol, I also think that I maybe have lost an inch or two of my arms anyways lol because compared to when I stand in the mirror sideways my breasts stick out more. I’m already using the dumbells aswell (the tricep one and the bicep curls)
I had a friend of mine tell me that I should lower the kg/weight but continue doing more reps of the machines at like 10kg??. But also confused because I want a sleeper build lol.
Sorry if this does sound like it’s all over the place I didn’t know how to word it lol