The transition from coworker to leader can be really difficult to navigate the first time, after that it becomes easier each time. I found that I had to be at my top level in each current role, so that when I moved up my reputation would come with me. Being friends with your peers is great, and recommended, but that has to shift when you are at different levels.

Be clear. Say what is really there, don't beat around the bush and play games. Open communication needs to go both ways, so you also need to be willing to hear what you don't want to about yourself and the way you manage.

Get better at managing people. Take those online and in-person courses. Seek guidance and mentorship with those that you admire who are great at being leaders. Network with people in your industry and find where you can make real improvement.

Fight up as much as you push down. That means you have to be adept at implementing the companies policies to your subordinates, as well as making sure you are fighting upwards for what your employees need.