I’ve struggled with this mentally, especially when I first was learning how to code. Eventually I realized while it’s great to know the ins and outs, you can allow yourself to only worry about what you need to know to get your code running (and that’s okay).

Write a script to go a thing, then learn about how to automate that with a cronjob, then learn about coding in the cloud. If you start too big you might get overwhelmed

I can second that taking notes has been a life saver. I use Ms one note and being able to search through old notes I took to get context on current things has been a major life saver