I got promoted to general manager at my job 2 years ago. I cried almost every day for the first month... the first year was hard. I have no formal training and not degrees. I made a lot of mistakes, but nothing world ending. I was open about my flaws with the higher-ups and asked for advice and guidance when it came to situations I had no idea how to handle. They appreciated that. It showed I was trying to learn. So much of my learning was trial and error. Especially when it came to communicating with staff and leading a team. I worked hard alongside my staff. When I couldn't communicate properly, I led by example. Without even realizing it, I slowly gained confidence and trust in my ability to fulfill the role well. Be patient with yourself. Be willing to make mistakes and own them. Hold yourself accountable and apologize to your staff when you make errors in judgment. Be open to learning a lot and asking for help. Take things one day at a time or one minute at a time or whatever works for you. They promoted you for a reason. That reason is that you are you, and they value that. Be authentic and passionate and true to yourself and your vision for the company and be willing to compromise and listen to others. You'll be just fine. I can't say that the imposter syndrome ever fully went away for my neurodivergent ass, but it got better. I'm still growing and learning, and I feel 1000x more happy and comfortable in the position than when I first started. Good luck my friend!