I'm joining for a new job on a senior role in Marketing. I feel like I'm affected by the most serious case of imposter syndrome. I feel like I have joined here by sheer luck. It's my first 7 figure salary. While I have worked with people abroad I feel terrified to talk to people outside my country and I think many of my teammates might be people I cannot relate to. I fear being shouted at by my superiors. I had  terrible bosses in my past two jobs and I feel like I'm still running in circles. Please any advice will help!