When I was learning Indonesian at school.. I found that it was important to learn the vocabulary (Vocab). Everything from verbs, nouns, pronouns etc. I always grouped my vocab into categories as it made it easier to learn. For example, one day I would look for words regarding school. I would write the english then the foreign language. It is very useful to know the english words to form sentences.
Write them down on paper and draw images that links the words. Practice everyday. Stick them on your toilet wall haha
Goodluck!