overal (Dutch): everywhere, anywhere, all over, throughout, everything
overall (English): generally, with everything considered

how can my brain accommodate these two languages together?
@mametsuko try and link them with specific songs or actors or characters or something! Or make up a very vivid different scenario for each. That helps me differentiate.

I still make mistakes because oooooh boy all three of my main languages have many false friends and many of them subtle, but it helps a lot more than not.
@mametsuko oh and also something I've developed due to those languages being so similar - really emphasising the accent differences in each. I completely change how I speak in each one, they all have different melodies (thankfully that's something they do have major differences in, Afrikaans is very lyrical and goes to all registers, Dutch is boring and is kinda one tone but has fun ways of pronouncing things, English is somewhere in the middle).

It helps with keeping the boxes somewhat separate, but it does require being very deliberate and working on your accent in each.
@len@nyan.network speaking english, dutch and afrikaans sounds very tough they are so close ​
@mametsuko as a kid Dutch was the absolute hardest of the three to get right  it sits squarely in the middle of Afrikaans and English, and has lots of loan words neither of the others do (lots of French and German).