I just broke a glass mirrior does this mean i will have bad luck for 7yrs?is this myth true?please help i fear

i really am scared i threw a chair at a wall with the mirrior by it and it hit the mirror and it broke.please help me.i arlready think i have bad luck or something because everything that happens to me is bad and now this and i go through a lot of depression.so if you break a glass mirrior will you have bad luck?has anyone experianced it?