Im trying to learn Sarus too, and so far, chapter 1 is not so hard

, but a way you could learn simple words in Sarus is by turning them into sentences, for example: Dr means Me, or I...i memorized it by remembering this sentence; I am a Doctor (Dr) and now i don't even need to say the whole sentence. Another example, Dm, wtihs means you if im not mistaken, I would remember this sentence, You are the Dungeon Master (Dm)....i don't know if that works for everyone or is just me O_o
but if it does help someone, im glad to have helped