Im so p¡ssedddd (tip for beginners)

I wasnt exposed to the cases at first, (german is my 2nd language, i didnt do much research on it unlike russian) and i will be honest, i didnt learn the the's (der, die, das) along with their words, so now, i have no clue what im doing, now i have to relearn all the words ive learned over the course of 2 years and memorize the genders that go along with them, please dont make fun of me.