Breast cancer

Just been diagnosed with breast cancer and dreading having the lumpectomy done just in case they find that it is bigger then they say it is and have never been put to sleep before for an operation has anyone else felt like this?

And why do they take so long between having biopsies and then results and then 4months later doing surgery I’m worried that it’s getting bigger or spreading because it’s not a lump it’s a mass and 4cm

Hi
I’m also new to this forum and the same as you , I have my lumpectomy on Monday , but now when I raise my arm my lump feels and looks huge and this worries me