Ok_Advisor1053

You can use the helpful library, which puts links to the calc manual in the function documentation, among other things. What you call online documentation is just the package manual.

The part where I need to type something, but the process is blocked

I memorize flash cards of all the elisp functions and M-x commands.

For professional work, yes, for just goofing off at home, no

Pass. Org mode is already feature creep mess

The nice thing about Emacs is that you can write a function to automate away the repetitive actions.

No idea what a mind map is.