I move between 4 different languages depending on what I'm working on. I would only say I'm an advanced-to-expert user of one of them. The others I'm just an i

I move between 4 different languages depending on what I'm working on. I would only say I'm an advanced-to-expert user of one of them. The others I'm just an intermediate user. When switching languages there's always a period of about 10 minutes where I'm adjusting to the syntax. Then there's a period of up to a few hours to get my head back into the correct space. For example, moving to a functional language like Erlang requires me a bit longer to get comfortable again. I've pretty much always got the docs open when I move over to my less comfortable languages for the first few days.