Learn a lot of vocabulary (English / Dutch)

My question is how can I learn a ton of vocabs.
I want to learn Dutch. So I am planning to learn the most used words.(1000 and than 5000) Many words are the same - my mother tongue is German.
The second thing is that I have to learn English vocab in school.
I read a few books about memory techniques and I am a beginner.
So how could I “create” a lot of memory places and how can (should I?) I seperate them (English/Dutch).
What’s the best technique to memorize them?