Can someone give me advice about learning a language?

I've been trying to teach myself the Russian language for about two years and consider myself an "advanced beginner." I recently hit a major wall with the grammar; all those conjugations ,irregular verbs and cases are giving me headaches. I can't possibly memorize all the rules. I'm not striving for fluency but is it possible to learn enough to communicate at a basic level without being totally proficient with grammar? I'm having thoughts of giving up ) :