Someone help me??10 points?

so,i need to write a simple card to my grandma in germany.it a shame that i cant speak german.im still learning now,im afraid that i could make some mistakes when posting the Christmas card.anyway,could someone help me translate some simple words.like hye Oma,how are you?i hope you fine.how is winter there?i dont know just a simple words for winter postcard.i now live in a tropical country and need helps for writing card in winter.im so worry that i couldnt make it be4 winter.so,i need your help guys..if you help me,im sure the 1o points will be yours