Sometimes you notice you are using past tenses to describe events which in not a far time were present, were part of your life. This is life, it goes on and you can't do much to prevent your joyful moments not to pass, so take it easy and enjoy this moment.

از دی که گذشت هیچ ازو یاد مکن
فردا که نیامده ست فریاد مکن
برنامده و گذشته بنیاد مکن
حالی خوش باش و عمر بر باد مکن