Are there any good books or resources that comes to your mind for better understanding what you've described?
https://www.amazon.com/Managers-Become-Leaders-Michael-Watki...
One of the challenges though in management is understanding what the business wants from you. Once you understand that you can be effective (and pick the right books to read)
https://www.amazon.com/Managers-Path-Leaders-Navigating-Grow...
https://www.amazon.com/Becoming-Technical-Leader-Problem-Sol...