They can do better than me. I need to trust in them to be able to do the job.
I went through a similar mindset and emotions when I stepped into a Lead role. I had to let go of the codebase that I wrote from scratch.
Growing a Senior Engineer:
communication organisation: setup mentoring hours
find time to code! setup Kanban board.
we removed the deadline. space to make mistakes.
Learn to say no, divide and conquer.