The Instrumental case in Russian has to be the most easiest to remember for me.
But I'm still working on the personal pronouns and adjectives for this case. It's a little more difficult but it's fun. It makes it more difficult because of my limited vocabulary.
The Accusative and Prepositional case is the same for Instrumental.
I really hope to improve in these cases so I can understand everything during this year. I also need improve my vocabulary because I would like to pass the A2-Basic test. I guess I'll be spending a lot of time this year working on everything.
I figure that I'll do the Dative and Genitive cases last because those seem to be the more difficult cases. Yay for a difficult language...