Is it only me that mocking server API is sooo hard?

Everything is hard for me now. I'm getting old and can't learn as quickly. Part of it's the environment now too - mismanaged teams, 2x the tech/languages as past projects. I lost the drive to learn because the stuff I learnt in the past has all been throwaway work due to the constant switching. I just switched to a new team and can't even get the project running locally because the documentation sucks. What little they have are all videos. Give me a goddamn checklist, not some disorganized, incomplete, and outdated video.