There’s already some good advice here, especially about virtual environments which might be the most important new concept to learn IMO. But just to let you know - it’s not just you. The most generous view of the Python package situation is that there are a lot of different ways to do it.
My go to for most of what you mention is Go, but that’s obviously a compiled language and not for scripting. Or is it - What do you think about https://github.com/traefik/yaegi, which provides an interpreter and REPL for Go? It would let you use a performant and well documented language in a more portable scripting way, but not preclude you from generating statically linked binaries if and when that’s convenient.