Waiting for a diagnosis

Hi - first post from me. Going through scary emotions. Found dents in breast so went straight to doc, she found the lump and referred me to clinic. But a 5 week wait, and my worried mum kindly sent me to a private consultant. He gave me an ultrasound and was pretty sure it's what I'm expecting - a 'bad lump'  Still waiting for the mammogram and biopsy though as he said it was small and treatable and waiting a few weeks for my NHS appointment would have no bearing on it!! I'm so scared of what to expect at the next appointment and how long I'll have to wait for results after that. Any advice would be lovely xx