I don’t know who to talk to,

a recent a&e visit for my mum found a shadow on her breast through ct scan. And told to speak to gp.

after a gp assessment she noted a hardening of breast skin and a lump and we have been referred to the breast clinic for suspected cancer

I have no one to really talk to and don’t want to get upset in front of my mum I need to be strong for her. But I can’t sleep I can’t eat I can’t imagine a world without her here. 
The breast with the lump is a lot larger (although she’s had one larger breast for as long as I can remember) and there is a sore on her nipple. Is it likely to be cancer with all these symptoms put together?

I am constantly scrolling through google everything is negative.

If my mum is not here I don’t want to be either