Можете ли вы помочь мне с русским языком?

Vsem Zdravstvuyte! I am looking for a friend to help me with the language of Russian! I am not a beginner, I have studied for a few months and I can read words (even without knowing their meaning), I do not know many of the words, and am just now tackling the 6 cases head-on. My Skype is Noxpotem. My problem is that I do not know when to use one case or the other, or which to use in a conversation. Thank you for your help if you add me!

I am willing to help you with English as well, if you need any translations or lessons, I am happy to help.

Hey buddha, my skype is korjavin.ivan, welcome